While running the automatic upgrading process, the system stops with this error. Our installation is now stuck. Can't open the system at all. Updating database structure Update errors : Upgrade to 21.12.00.016 [04:05:32]: Bug 30060 - Update user_permissions to add primary key and remove null option from code column ERROR: {UNKNOWN}: DBI Exception: DBD::mysql::db do failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IF EXISTS `PRIMARY`' at line 1 at /usr/share/koha/lib/C4/Installer.pm line 739
*** This bug has been marked as a duplicate of bug 30912 ***