I had the same problem that is shown in the picture above
I thought I was banned or found out that I hacked the game and my game level was 158
I tried many solutions and paid a sum of money to anyone who solves this problem, but I did not find a solution for that
But after many attempts me and my friends found out that I was not blocked
The only problem is that you are stuck in the test server and when you exit the game and come back that problem appears
The solution is to get out of that message or the problem that appeared
1 - Clear the full and temporary game data (do not delete the game, just delete the data) and do not open the game until you apply the second option
2 - Open the VPN application and choose the country of Finland or Sweden and contact the server and then enter the game and it will work with you easily and you will not have the problem again
(I tried Thailand and Singapore and it didn't work)
This method has been tested on 4 accounts and worked successfully
The most important thing is to have the game data in memory
I wanted to share this method with you, and I hope it works for you. Thank you
Note: I do not speak English fluently, but I used an application to translate my explanation, I hope you understand)