Fresh install of 3.7.5. Using Java 1.8.0_181. OS: CentOS Linux 6.10. Create new campaign from DM license. Put in name, chose D&D 5.0, chose D&D SRD, put in password, chose direct IP networking and oversized layout. Clicked ok. Process to start campaign began and then error box appeared with "Unexpected throwable initializing app. java.lan.NullPointerException." Attaching D20PRO.log from server.