Could not reload the FOP operator panel server after an update!

Hi,
In my FreePBX system status on the FreePBX Notices I got the information that 4 modules updates are available. Then I proceed to the Module Admin and I update them. After this I received the information that the Frmework module is disable since it need to be updated, as so I went again to the Module Admin and I update it.
Then I’m receiving the message that “Could not reload the FOP operator panel server using the bounce_op.sh script. Configuration changes may not be reflected in the panel display.
Added 16 minutes ago
(freepbx.reload_fop)” on the FreePBX System Status in the FreePBX Notices.

I appreciate that if anyone has a similar problem could let me know how to fix it.

Thanks a lot,
Antonio Cotao