I have a wordpress form made with Caldera Forms plugin. I used the Filetrip plugin to upload the form files and send the e-mail link from those files, everything was working correctly until from NADA today, I can not upload files.
I configured the plugin to accept only PDF with sizes up to 10M, but I try to attach a PDF with 2M it will not. It stops halfway and the message I see is:
"Failed to open output stream"
How can I resolve this problem?