# Internal/server error - java.lang.OutOfMemoryError: Compressed class space exception **URL:** \ **Category:** Ignition\ **Created:** [April 15, 2019, 2:28pm UTC](https://forum.inductiveautomation.com/t/internal-server-error-java-lang-outofmemoryerror-compressed-class-space-exception/24152 "2019-04-15T14:28:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![gabriele.predoli](https://avatars.discourse-cdn.com/v4/letter/g/82dd89/32.png) [@gabriele.predoli](https://forum.inductiveautomation.com/u/gabriele.predoli)\ **Post date:** [April 15, 2019, 2:28pm UTC](https://forum.inductiveautomation.com/t/internal-server-error-java-lang-outofmemoryerror-compressed-class-space-exception/24152/1 "2019-04-15T14:28:55Z")
Hi, I have a system just updated with Ignition 7.9.10 and Sepasoft MES Production/OEE modules 2.9.3 SP9. Furthermore, the same system with Ignition 7.9.5 and Sepasoft MES Production/OEE modules 2.9.3 SP7. With regards to Sepasoft modules I have more than 50 lines working under them. Memory dedicated to Ignition is 12 GB on both systems. On both systems, recently, we started to have, sometimes, a few gateway pages not reachable with the gateway giving **internal or server error**. Looking at the log it seems due to a “java.lang.OutOfMemoryError: Compressed class space” exception. Any idea of what I could check ? Thank you very much. Gabriele ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [April 15, 2019, 3:57pm UTC](https://forum.inductiveautomation.com/t/internal-server-error-java-lang-outofmemoryerror-compressed-class-space-exception/24152/2 "2019-04-15T15:57:45Z")
The rest of the stack trace of that error message would be more useful.