Hello @mborin
I trust you are doing well!
Please let us know if the same issue persist when all the other plugins are deactivated?
It could be a conflict with a plugin that is active on your site. Please run a quick test, temporarily deactivate all the other plugins besides teh Forminator.
If all is well, start activating one plugin at a time, every time checking the page when the form will disappear again to find which plugin may be conflicting.
Have a backup of your site before running this test, so if something will go wrong you can restore it back.
If after running a test for conflict the issue still persists, please share with us a link to a page that you are having an issue with.
Please advise,
Kind regards,
Nastia