[Satellite 6] After upgrading to Satellite 6.2.6 tasks are getting paused with error "katello_events does not exist"

Issue

• Task are getting paused after upgrading to the Satellite 6.2.6:

Errors:

PG::Error: ERROR:  relation "katello_events" does not exist
LINE 5:                WHERE a.attrelid = '"katello_events"'::regcla...
                                          ^
:               SELECT a.attname, format_type(a.atttypid, a.atttypmod),
                     pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
                FROM pg_attribute a LEFT JOIN pg_attrdef d
                  ON a.attrelid = d.adrelid AND a.attnum = d.adnum
               WHERE a.attrelid = '"katello_events"'::regclass
                 AND a.attnum > 0 AND NOT a.attisdropped
               ORDER BY a.attnum