I've already tried uninstalling and installing several times, resetting the computer, defragmenting the storage devices ... I don't know what to do anymore.

The display shows the word Mojang in red background and then starts flashing red and black eternally. My friends and I paid for a Realms server and I haven't been able to play in 3 weeks ...

If someone could help me step by step to solve the problem, I would really appreciate it.

The version of the game, according to the computer is 1.16.20102.0