I can't play: "There was an error in handling the request"

[AceRimmer-21395]

Hello. I bought a copy of Warcraft 3 Reforged last week through Battle Net shop. When I opened the game for the first time I was able to login without any issues. However after couple of hours when I launched the game again I wasn’t able to login. I got stuck in a login screen (the one with the lion door background) with a error message saying: “There was an error in handling the request”. I tried many things to solve this, but nothing has helped.

Things I tried:

1. Resetting network devices
2. Connecting through hotspot on my phone (mobile internet provider)
3. Release and renew IP and flush DNS
4. Reinstalling BattleNet
5. Reinstalling Warcraft 3
6. Installing the game on a different machine.
7. Tried everything in support articles: Blizzard Support - Warcraft III: Reforged Connection Problems

I believe this might be a problem with my account. Because my friend is playing on a same network without any issues.

[Leviathan-1945]

Check you purchase history in your account. Sounds like the temporary access you were given while the purchase was pending was removed due to something, such as the purchase ultimately failing.

That, or make sure you’re logging into the same Battlenet account that you purchased the game on.

[AceRimmer-21395]

Thanks for the quick reply.
In the purchase history it says ‘Complete’. I also check my banking app and I can see that the transaction was processed yesterday (26/06). This is the only BattleNet account I have.

I tried to login today for several times, however the same error message is shown. I really feel like Im running out of options here .

Thanks for your help anyway.

— EDIT —
SOLUTION:
After digging deeper into forums I found this post which has helped me to fix my problem: I can't play Warcraft III even though I purchased it - #5 by Daernayc - Technical Support - Warcraft III: Reforged Forums

Only thing I needed to do was to delete Battle.net app cache.