PDOException: SQLSTATE[25P02] Saving a new article in blog node

When I save new an article in blog node I get the error
Error locate on title field if I save string I get the error.

PDOException: SQLSTATE[25P02]: In failed sql transaction: 7 ERROR: current transaction is aborted, commands ignored until end of transaction block: SELECT column_name, data_type, column_default FROM information_schema.columns WHERE table_schema = :schema AND table_name = :table AND (data_type = 'bytea' OR (numeric_precision IS NOT NULL AND column_default LIKE :default)); Array ( [:schema] => public [:table] => url_alias [:default] => %nextval% ) in drupal_write_record() (line 7207 of /var/www/domen/web/includes/common.inc).

There're two errors in logs, they differ only 'type'. type is 'php' or 'node'.
There're the errors only I write string in title, for example 'name of article' when I write numbers there're not the errors. I tried to find the errors and I couldn't.
I use Postergsql.