diff --git a/swad_changelog.h b/swad_changelog.h
index 8db40a772..133807e2f 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -600,13 +600,15 @@ TODO: Salvador Romero Cort
 
 TODO: FIX BUG, URGENT! En las fechas como parámetro Dat_WriteParamsIniEndDates(), por ejemplo al cambiar el color de la gráfica de accesos por día y hora, no se respeta la zona horaria.
 */
-#define Log_PLATFORM_VERSION	"SWAD 20.68.2 (2021-04-26)"
+#define Log_PLATFORM_VERSION	"SWAD 20.68.4 (2021-04-27)"
 #define CSS_FILE		"swad20.45.css"
 #define JS_FILE			"swad20.6.2.js"
 /*
 TODO: Rename CENTRE to CENTER in help wiki.
 TODO: Rename ASSESSMENT.Announcements to ASSESSMENT.Calls_for_exams
 
+	Version 20.68.4:  Apr 27, 2021  Fixed bug in question tags. Reported by Julio Ortega Lopera. (309802 lines)
+	Version 20.68.3:  Apr 27, 2021  Maximum file size increased from 1.5 GiB to 2000 MiB. (309809 lines)
 	Version 20.68.2:  Apr 26, 2021  Code optimization in games and exams. (309807 lines)
 	Version 20.68.1:  Apr 26, 2021  Code refactoring in exams and tests. (309862 lines)
 	Version 20.68:    Apr 26, 2021  New module swad_error. (309853 lines)
diff --git a/swad_error.c b/swad_error.c
index dc9341034..fef217f4f 100644
--- a/swad_error.c
+++ b/swad_error.c
@@ -25,6 +25,8 @@
 /********************************* Headers ***********************************/
 /*****************************************************************************/
 
+#include <stdlib.h>	// For exit
+
 #include "swad_database.h"
 #include "swad_error.h"
 #include "swad_global.h"
diff --git a/swad_file.h b/swad_file.h
index 7149161bc..5abf7b4f5 100644
--- a/swad_file.h
+++ b/swad_file.h
@@ -42,7 +42,7 @@
 
 // Maximum allowed size (in bytes) of a file when uploading it.
 // Must be < 2 GiB, because off_t type is of type long int
-#define Fil_MAX_FILE_SIZE (1536ULL * 1024ULL * 1024ULL)	// 1.5 GiB
+#define Fil_MAX_FILE_SIZE (2000ULL * 1024ULL * 1024ULL)	// 2000 MiB = 1.95 GiB
 
 // Global files
 struct Files
diff --git a/swad_tag.c b/swad_tag.c
index e0e5e27ae..72db80b2d 100644
--- a/swad_tag.c
+++ b/swad_tag.c
@@ -367,25 +367,14 @@ void Tag_RenameTag (void)
 
 static long Tag_GetTagCodFromTagTxt (const char *TagTxt)
   {
-   long TagCod;
-
    /***** Get tag code from database *****/
-   TagCod = DB_QuerySELECTCode ("can not get tag",
-				"SELECT TagCod"
-				 " FROM tst_tags"
-				" WHERE CrsCod=%ld"
-				  " AND TagTxt='%s'",
-				Gbl.Hierarchy.Crs.CrsCod,
-				TagTxt);
-   if (TagCod <= 0)
-      Ale_CreateAlert (Ale_ERROR,NULL,
-		       "Wrong tag.");
-
-   /***** Abort on error *****/
-   if (Ale_GetTypeOfLastAlert () == Ale_ERROR)
-      Ale_ShowAlertsAndExit ();
-
-   return TagCod;
+   return DB_QuerySELECTCode ("can not get tag",
+			      "SELECT TagCod"
+			       " FROM tst_tags"
+			      " WHERE CrsCod=%ld"
+			        " AND TagTxt='%s'",
+			      Gbl.Hierarchy.Crs.CrsCod,
+			      TagTxt);
   }
 
 /*****************************************************************************/
diff --git a/swad_test.c b/swad_test.c
index 6b1070dd0..914d90922 100644
--- a/swad_test.c
+++ b/swad_test.c
@@ -4948,6 +4948,7 @@ void Tst_InsertOrUpdateQstTagsAnsIntoDB (struct Tst_Question *Question)
   {
    /***** Insert or update question in the table of questions *****/
    Tst_InsertOrUpdateQstIntoDB (Question);
+
    if (Question->QstCod > 0)
      {
       /***** Insert tags in the tags table *****/