Whatsapp isn't letting me into a group I am a part of

So very recently, I was just having fun with a few friends on our whatsapp group and decided to test out how many letters a whatsapp message could take. A notification came up with 65.5 thousand characters could be sent from the original. After this, I attempted that with emojis and went a little overboard as I'm not very bright it would seem.

Minutes later, I was satisfied with the gargantuan amount of emojis I had copied and pasted and hit send. This however did not send it at all and after a while, whatsapp just closed on its own. Now, every time I attempt to click on the group it won't let me in and either I try again or it closes down itself.

I can still receive messages and see them as notifications but I just can't get into the group nor post anything. Does anyone know the solution?

Edit: I have tried clearing all the messages on the group and nothing happens, the same problem still occurs

— modified on Aug 11, 2018, 6:55:15 PM