in my opinion, it seems that the script try to fix an update maintenance on the database, and there was no information to set.
File “/var/www/searxng/searxng-src/searx/sqlitedb.py”, line 452, in m_time
res = self.DB.execute(self.SQL_M_TIME, (name,)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^sqlite3.OperationalError: no such table: