Рабочие процессы препятствуют корректному обновлению служебной БД

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Error occurred during database "rubackup" upgrade.
Can't create server part of config file

Configuration wasn't complete.

Error: bool rb_update::resolve(pqxx::work&, const std::vector<std::__cxx11::basic_string<char> >&, Database&) - exception caught: ERROR:  database "rubackup" is not currently accepting connections
CONTEXT:  parallel worker
Error: Query: ALTER TABLE task_log ADD PRIMARY KEY (record_id);
Error: int mainRoutine(int, char**) - pqxx exception caught: ERROR:  database "rubackup" is not currently accepting connections
CONTEXT:  parallel worker

db=,user=,app=,client=FATAL:  database "rubackup" is not currently accepting connections
db=rubackup,user=rubackup,app=[unknown],client=111.111.1.11ERROR:  database "rubackup" is not currently accepting connections
db=rubackup,user=rubackup,app=[unknown],client=111.111.1.11CONTEXT:  parallel worker
db=rubackup,user=rubackup,app=[unknown],client=111.111.1.11STATEMENT:  ALTER TABLE task_log ADD PRIMARY KEY (record_id);
db=,user=,app=,client=FATAL:  database "rubackup" is not currently accepting connections
db=,user=,app=,client=LOG:  background worker "parallel worker" (PID 82760) exited with exit code 1
db=,user=,app=,client=LOG:  background worker "parallel worker" (PID 82761) exited with exit code 1