diff --git a/core/sm_stringutil.cpp b/core/sm_stringutil.cpp
index b8c3d764..4e425168 100644
--- a/core/sm_stringutil.cpp
+++ b/core/sm_stringutil.cpp
@@ -74,7 +74,7 @@ try_serverlang:
 		langname = "en"; //:TODO: read serverlang
 		if (!TryServerLanguage(langname ? langname : "en", &langid))
 		{
-			pCtx->ThrowNativeError("Translation failure: English language not found.");
+			pCtx->ThrowNativeError("Translation failure: English language not found");
 			goto error_out;
 		}
 	} else if ((target >= 1) && (target <= g_Players.GetMaxClients())) {
@@ -83,7 +83,7 @@ try_serverlang:
 		{
 			if (langname && !strcmp(langname, "en"))
 			{
-				pCtx->ThrowNativeError("Translation failure: English language not found.");
+				pCtx->ThrowNativeError("Translation failure: English language not found");
 				goto error_out;
 			}
 			target = LANG_SERVER;
diff --git a/core/smn_float.cpp b/core/smn_float.cpp
index 4a8e8c34..4973a22f 100644
--- a/core/smn_float.cpp
+++ b/core/smn_float.cpp
@@ -88,7 +88,7 @@ static cell_t sm_Logarithm(IPluginContext *pCtx, const cell_t *params)
 
 	if ((val <= 0) || (base <= 0))
 	{
-		return pCtx->ThrowNativeError("Cannot evaluate the logarithm of zero or a negative number (val:%f base:%f).", val, base);
+		return pCtx->ThrowNativeError("Cannot evaluate the logarithm of zero or a negative number (val:%f base:%f)", val, base);
 	}
 	if (base == 10.0)
 	{
@@ -121,7 +121,7 @@ static cell_t sm_SquareRoot(IPluginContext *pCtx, const cell_t *params)
 
 	if (val < 0.0)
 	{
-		return pCtx->ThrowNativeError("Cannot evaluate the square root of a negative number (val:%f).", val);
+		return pCtx->ThrowNativeError("Cannot evaluate the square root of a negative number (val:%f)", val);
 	}
 
 	return sp_ftoc(sqrt(val));
diff --git a/core/smn_player.cpp b/core/smn_player.cpp
index fa6da607..41378cf2 100644
--- a/core/smn_player.cpp
+++ b/core/smn_player.cpp
@@ -46,13 +46,13 @@ static cell_t sm_GetClientName(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(index);
 	if (!pPlayer->IsConnected())
 	{
-		return pCtx->ThrowNativeError("Client %d is not connected.", index);
+		return pCtx->ThrowNativeError("Client %d is not connected", index);
 	}
 
 	pCtx->StringToLocalUTF8(params[2], static_cast<size_t>(params[3]), pPlayer->GetName(), NULL);
@@ -64,13 +64,13 @@ static cell_t sm_GetClientIP(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(index);
 	if (!pPlayer->IsConnected())
 	{
-		return pCtx->ThrowNativeError("Client %d is not connected.", index);
+		return pCtx->ThrowNativeError("Client %d is not connected", index);
 	}
 
 	char buf[64], *ptr;
@@ -90,13 +90,13 @@ static cell_t sm_GetClientAuthStr(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(index);
 	if (!pPlayer->IsConnected())
 	{
-		return pCtx->ThrowNativeError("Client %d is not connected.", index);
+		return pCtx->ThrowNativeError("Client %d is not connected", index);
 	}
 
 	if (!pPlayer->IsAuthorized())
@@ -114,7 +114,7 @@ static cell_t sm_IsPlayerConnected(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	return (g_Players.GetPlayerByIndex(index)->IsConnected()) ? 1 : 0;
@@ -125,7 +125,7 @@ static cell_t sm_IsPlayerIngame(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	return (g_Players.GetPlayerByIndex(index)->IsInGame()) ? 1 : 0;
@@ -136,7 +136,7 @@ static cell_t sm_IsPlayerAuthorized(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	return (g_Players.GetPlayerByIndex(index)->IsAuthorized()) ? 1 : 0;
@@ -147,13 +147,13 @@ static cell_t sm_IsPlayerFakeClient(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(index);
 	if (!pPlayer->IsConnected())
 	{
-		return pCtx->ThrowNativeError("Client %d is not connected.", index);
+		return pCtx->ThrowNativeError("Client %d is not connected", index);
 	}
 
 	return (pPlayer->IsFakeClient()) ? 1 : 0;
@@ -182,11 +182,11 @@ static cell_t sm_GetClientInfo(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 
 	char *key;
@@ -207,13 +207,13 @@ static cell_t sm_PrintToConsole(IPluginContext *pCtx, const cell_t *params)
 	int index = params[1];
 	if ((index < 1) || (index > g_Players.GetMaxClients()))
 	{
-		return pCtx->ThrowNativeError("Invalid client index %d.", index);
+		return pCtx->ThrowNativeError("Invalid client index %d", index);
 	}
 
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(index);
 	if (!pPlayer->IsInGame())
 	{
-		return pCtx->ThrowNativeError("Client %d is not in game.", index);
+		return pCtx->ThrowNativeError("Client %d is not in game", index);
 	}
 
 	char buffer[1024];
@@ -237,15 +237,15 @@ static cell_t SetUserAdmin(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 	if (!g_Admins.IsValidAdmin(params[2]))
 	{
-		return pContext->ThrowNativeError("AdminId %x is not valid.", params[2]);
+		return pContext->ThrowNativeError("AdminId %x is not valid", params[2]);
 	}
 
 	pPlayer->SetAdminId(params[2], params[3] ? true : false);
@@ -259,11 +259,11 @@ static cell_t GetUserAdmin(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 
 	return pPlayer->GetAdminId();
@@ -275,11 +275,11 @@ static cell_t AddUserFlags(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 
 	AdminId id;
@@ -305,11 +305,11 @@ static cell_t RemoveUserFlags(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 	
 	AdminId id;
@@ -334,11 +334,11 @@ static cell_t SetUserFlagBits(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 
 	AdminId id;
@@ -359,11 +359,11 @@ static cell_t GetUserFlagBits(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 
 	AdminId id;
@@ -381,11 +381,11 @@ static cell_t GetClientUserId(IPluginContext *pContext, const cell_t *params)
 	CPlayer *pPlayer = g_Players.GetPlayerByIndex(client);
 	if (!pPlayer)
 	{
-		return pContext->ThrowNativeError("Invalid client index %d.", client);
+		return pContext->ThrowNativeError("Invalid client index %d", client);
 	}
 	if (!pPlayer->IsConnected())
 	{
-		return pContext->ThrowNativeError("Client %d is not connected.", client);
+		return pContext->ThrowNativeError("Client %d is not connected", client);
 	}
 
 	return engine->GetPlayerUserId(pPlayer->GetEdict());