CMS Made Simple Forums

Hello everybody. When I try to write results to a flat file in FormBuilder, I obtain this error:

Sorry! There was an error handling your form submission.
Error. Unable to obtain lock for file.

I set the access right to the correct directory to 777, and because ther is a much older similar post in the forum, I checked the cms_module_fb_flock table in the DB searching for bad data, but the table is empty.

Can someone help me?

Thanks in advance

I have no idea but would suggest to post at least more details like your CMSMS system information.

Solved - I upgraded PHP to 5.6 (from 5.3.3) and the error disappeared