A moodle and a bbb plugin have been installed (debian 10 64 bit) on a vps for a primary school. The moodle part works perfectly, there are no interruptions. Teachers keep a video lesson for a small number (<20 students) a day using BBB, but we often get an error message like this:
bigbluebuttonbn/You have exceeded the max number of concurrent meetings.
What could be the problem?
Thank you in advance for your help!