currently we are using SobiPro 126.96.36.199 and SobiPro Framework 1.5 on Joomla 3.10.10 on Php 7.4.
We are planing doing the upgrade to SobiPro 2 and to Joomla 4 soon. But at the moment, we have to fix an issue on the production page.
The site has a the "registration" form to add an entry for customers. When everything is filled out and the submit button gets clicked, a red "hover" on the whole site is displayed and nothing is responding.
I did try to find out whats going on but I'm not able to find a solution. The only thing I see when submitting the form is an "E_NOTICE" in Debugging log (please see Screenshot attached). The webbrowser console does not show any errors, also in webserver access logs, no issue there.
The site: https://branchenverzeichnis.info/firma-eintragen.html
Has anybody seen that before? The server administrator told us, that he did not do any changes.
Thanks in advance.