DeNA is continuing to add more events and new features to Pokémon Masters on a regular basis. Read on below to learn more about newly-discovered issues:
Network Connection Issues
From around May 19, 2020 at 11:00 p.m. to May 19, 2020 at 11:24 p.m. , we confirmed a server connectivity issue. This has been resolved and you should now be able to play normally.
As a compensation for this issue, all Trainers will receive 50 non-paid Gems.
Note: We are planning compensation for this issue at a later date.
We sincerely regret any inconvenience and hope you continue to enjoy Pokémon Masters.
Source: DeNA
Pokémon Blog 
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