Index: branches/5.1.x/core/install/upgrades.sql
===================================================================
diff -u -N -r14109 -r14161
--- branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 14109)
+++ branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 14161)
@@ -1997,4 +1997,5 @@
 
 # ===== v 5.1.2-B1 =====
 DROP TABLE EmailSubscribers;
-DROP TABLE IgnoreKeywords;
\ No newline at end of file
+DROP TABLE IgnoreKeywords;
+ALTER TABLE PermissionConfig DROP ErrorMessage;	
\ No newline at end of file