Hello everyone, I'm facing an issue in the upgradation of Koha, terminal is executing the following error: DBD::mysql::st execute failed: Table 'koha_library.systempreferences' doesn't exist at /usr/share/koha/lib/Koha/Database.pm line 152. DBD::mysql::st execute failed: Table 'koha_library.systempreferences' doesn't exist at /usr/share/koha/lib/Koha/Database.pm line 152. Use of uninitialized value in numeric lt (<) at /usr/share/koha/intranet/cgi-bin/installer/data/mysql/updatedatabase.pl line 78. DBD::mysql::db do failed: Table 'koha_library.bookshelf' doesn't exist at /usr/share/koha/lib/Koha/Database.pm line 152. DBD::mysql::db do failed: Table 'koha_library.shelfcontents' doesn't exist at /usr/share/koha/lib/Koha/Database.pm line 152. DBD::mysql::db do failed: Table 'koha_library.virtualshelfcontents' doesn't exist at /usr/share/koha/lib/Koha/Database.pm line 152. DBD::mysql::db do failed: Table 'koha_library.virtualshelfcontents' doesn't exist at /usr/share/koha/lib/Koha/Database.pm line 152. Undefined subroutine &main::DropAllForeignKeys called at /usr/share/koha/intranet/cgi-bin/installer/data/mysql/updatedatabase.pl line 86. -- Regards: *Irfan Taimoor Memon*