Log errors on app lunch with pg_get_expr and user controller

[BitPerformance]

pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
WHERE a.attrelid = '"users"'::regclass
ORDER BY a.attnum

app/controllers/users_controller.rb:28:in `new'
ON a.attrelid = d.adrelid AND a.attnum = d.adnum
AND a.attnum > 0 AND NOT a.attisdropped

source=rack-timeout id=79125a93-c79f-48f2-87bc-0a2bfb665911 wait=9016ms timeout=10000ms service=134ms state=completed

do you know what issue can cause that

thans