Server issues!

For some reason when i was playing The hive on skywars i got an error code on minecraft! It was a minecraft error that said this: Error: AAABiONF59+nAlvl4IMxQ6Q4r5HBzFCSAwsGCAMJAQ==

I tried getting a screan shot but it didnt save it because the only thing i got is a black screan with all the things! I dont know why this happened but someone in your team needs to fix this! Please!