2020.3 version throws error and cant perform any query

I cant execute any query. After any query the results are empty.

In the database explorer all me connection hang in "Loading..."

I cant even disconnect or refresh.

I see this event log:

get long/double overflows locals
Exception Details:
Location:
com/intellij/database/dialects/postgresgreenplumbase/model/PgGPlumBaseModelHelper.<clinit>()V @22: lload
Reason:
Local index 1 is invalid

Any suggestions?

Thanks.