I went to his page also, I did not find this tweet, however he could have removed it because there is a tweet which was posted a few minutes later at 549. Here is what it says:

George Papadopoulos
@GeorgePapa19
·
1h
Breaking: Joseph Mifsud is back in the spotlight in Italy following the collapse of the Italian government. His personal lawyer has admitted on the record to having been interviewed by Durham.