Good Day After i installed the Billing Module i did like on How To the Resync. Now Customer 1 is synced (also on Database). So i thought maybe a restart of full Server solve it. --> didn't solve. So i thought maybe i need again to resync. Did again. Nothing happen. I watched on Database, only Customer 1 is in Database on Invoice. I tested to create a new test user. This also is Synced. But there are about 10 or more Customer which are not synced into the Billing Module. I use a single Server with newest ispconfig 3 and Billing Module. It's running on Ubuntu 20.04. May Someone got another idea? Cause the First Customer also New customer got synced i don't think it's a installation issue, i think it's more a bug in the actual version. Thank you. Best Regards