System error 304

[ZuzJon]

ERROR
Error Type: System
Error Code: #304 — Learn more about this error.

Debugging:
Failed query in ft_process_form, /var/www/html/europa/euwtffrm/process.php, line 386:
INSERT INTO ft2__form_1710 (col_1, col_2, col_3, col_4, col_5, col_6, col_7, col_8, col_9, col_10, col_11, col_12, col_13, col_14, col_15, col_16, submission_date, last_modified_date, ip_address, is_finalized)
VALUES ('15 Validation services | 15.01 Registration of legal entities', '_84bvpv8qx', ' User App - Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36', ' ', 'Zuzana', 'Jonacek', 'zuzana.jonacek@shmu.sk', '', '', 'SK', 'Research Organisation', 'Funding & Tenders Portal', '808', '15.03 LEAR appointment', 'Dear Madame or Sir, \r\n\r\nmy organisation needs to change the appointed LEAR, but we do not have valid LEAR at the moment (person appointed as our LEAR have not worked for your organisation for years). We also do not have valid account administrator, so we are not able to make the change as we do not have access to our account. Could you please advise us what to do to change the LEAR in our contitions? Thank you.', 'agreed', '2020-11-23 10:56:32', '2020-11-23 10:56:32', '127.0.0.1', 'yes')