Hi Jorge,
Looked into your site and done some debugging. There are some errors seen in debug log.
1) Unknown: open(/var/lib/php/session/sess_qhorc4u8pr0l56h7960klut917, O_RDWR) failed: Permission denied (13) in Unknown on line 0
2) PHP Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php/session) in Unknown on line 0
3) Table ‘xxxxxxxxx.wp_geodir_gd_place_detail’ doesn’t exist
1) & 2) are due to incorrect session configuration from server. See this https://wpgeodirectory.com/support/topic/warning-session-start-error-code-line-280/#post-351638 and ask your server admin to fix it.
3) Provide phpmyadmin access to check database structure and wp_geodir_gd_place_detail table. May be this table is corrupted or deleted.
Thanks,
Kiran