Dear All, When I upgrading the schema with this command "sudo koha-upgrade-schema library" I got the following message. *Upgrade to 21.06.00.001 [12:11:43]: Bug 28489 - Modify sessions.a_session from longtext to longblob* *ERROR: {UNKNOWN}: DBI Exception: DBD::mysql::db do failed: Table 'koha_library.sessions' doesn't exist at /usr/share/koha/lib/C4/Installer.pm line 739.* Can anybody help me with this issue? Thanks and Best Regards, AFA