Error after upgrade 8.1.4 to 8.4.2

Hi,

After doing an upgrade the following error started to occur.

ERROR: permission denied for schema sch_sis
LINE 1: SELECT 1 FROM ONLY "sch_sis"."tb_almo" x WHERE "c...
^
QUERY: SELECT 1 FROM ONLY "sch_sis"."tb_almo" x WHERE "cd_almo" OPERATOR(pg_catalog.=) $1 FOR SHARE OF x

********** Error **********

ERROR: permission denied for schema sch_sis
SQL state: 42501

I checked that the scheme has the permissions.
May be some configuration?

Can anyone help me on this error

Thanks a lot

Eduardo