Please note that flags configuration changed in
vBET because new languages was added. It was done some time ago, but I do not know from which version you updated. Also please refresh your view in browser - maybe it is only browser cache issue. Please try to use F5 in IE, or use other browser and check how it looks. If flags still are not visible - please open new thread for new issue. Describe it there and us PM access details - we will check the configuration.
This version do not create over 100 groups. It creates 53 groups - one for each language. It was requested by our users. Those groups are automatically managed by
vBET. Thanks that you can see statistics about default language usage, send posts only to specific group, set notices only for specific groups... If you need more info about those groups please open new thread. 1 thread = 1 issue.
Going back to the issue. Described issue is new for us so we Google it and according to found information this is related to 504 gateway timeouts and it is configuration issue. Please play with your timeout configuration.
Timeouts happens when you turn on
vBET because
vBET waits for translation results from translation providers. So this is the part we cannot influence - we just wait for 3rd party results. Google Translation API v1 is about to be closed soon - they already set limits, so it is possible also that it will be slower.
Also please check your configuration for
Admin CP -> vBET -> Translation Option -> Delay between translations and make sure it is not too high.
Please use the hints (especially server configuration changes for timeout) and tell do you need more help here.