The itgenclr003 seems to occur on German environments, since a specific HTTP field on release 26.0 contains text like “26 März 26” instead of the according to specification required English text.
Release 26.0 has significantly improved internationalization features over release 25.0, where text that was previously English is now correctly set to the requested language. And it seems sometimes incorrectly translated.
A new release has been made available that should solve this issue. The necessary changes are available with all releases after 26.0.16 and with all future BETA versions.
This new release has been/will be taken into production on Invantive Cloud, expected for today.
For more information see:
It is recommended to try again as soon as it reads 26.0.16 in the top right menu.