Unable to output data from tables in pgAdmin4 due to missing oid operator

I am currently running Postgresql 10.6 locally which I interface with using PgAdmin 4.12, up until today everything was running fine. However today I ran the following query in the pgAdmin query editor: SELECT * FROM test_table LIMIT 100 and got the following error: > ERROR: operator does not exist: - oid at character 125 > HINT: No operator matches the given name and argument type. You might need to add an explicit type cast. > STATEMENT: SELECT at.attname, at.attnum, ty.typname > FROM pg_attribute at LEFT JOIN pg_type ty ON (ty.oid = at.atttypid) > WHERE attrelid=-1519044407::oid AND attnum = ANY ( > (SELECT con.conkey FROM pg_class rel LEFT OUTER JOIN pg_constraint con ON con.conrelid=rel.oid > AND con.contype='p' WHERE rel.relkind IN ('r','s','t', 'p') AND rel.oid = -1519044407::oid)::oid[]) The strange thing is when I run the same command on tables which were created yesterday, the data is output into the Pgadmin data output window successfully. I also tried running the same command with psql: psql -U postgres -d geodata -c 'SELECT * FROM test_table LIMIT 100' which was also successful. I am able to create tables in Pgadmin just not output them directly. Any new table I create and then output ends with the top error, the only difference is the oid changes. I have uninstalled Pgadmin and made sure to delete all leftover folders and reinstalled with no change. Does anyone have any ideas what the problem is? Is the issue coming from pgadmin or is my Postgresql server corrupted in some way?