Dear Gavick-Pro Team,
Https://comdatanet.ch is built with your Joomla GK Writer template. Since a few weeks, we're having a white screen multiple times a day. We've updated the template to version 3.27 / Joomla 3.9.14. We've also tested the page with different PHP versions with the result, that we've encountered that blank screen issue with all PHP versions. We've also already contacted our hosting company. They've seen some capacity issues on the server caused by that landing page. Meanwhile, we've updated the hosing to 150% CPU and 2 GB PMEM. Unfortunately, the issue did not go away.
Furthermore, we've seen several similar questions regarding blank pages on the Gavick support forum. All have been solved by your support team. A super user account can be provided.
Thank you and best regards