Hi @awdi30,
seems like a similar problem like in Mk_oracle plugin problem. Hadn’t yet time to take a deeper look what’s going wrong there. Can you please run MK_CONFDIR=/etc/check_mk/ /usr/lib/check_mk_agent/plugins/mk_oracle -t (may passwords included) and check if all connections are working properly?
Which OS your client is running on and is it a GRID enabled database or is there ASM enabled?