Elna 9000 sewing machine

Check your owner's manual for presser foot pressure adjustment. Yours is probably set too lightly.

The owner's manual would have that information:

Elna 8000 9000 Diva Sewing Machine Instruction Manual

Instruction Manual Elna 9000 Computer

Service Manual:
Service Manual Elna Computer 9000 Janome Sewing Centre Everton Park

The manual should be helpful:

Elna 8000 9000 Diva Sewing Machine Instruction Manual

How to Make Buttonhole on Your Sewing Machine Sew4Home

How to sew buttonhole with an old machine

Elna 8000 9000 Diva Sewing Machine Instruction Manual

Instruction Manual Elna 8000

Elna 9000 8000 DIVA Sewing machine instruction manual

...

Appears parts are the same.
Elna 7000 9000

HOW DOES THE ELNA BLIN FOOT LOOKS LIKE

I am not sure which machine you are using, but I have an Elna 9000. The only code I have ever seen come up on the screen is "btr" which signifies that the batteires for the electronic memory are running low. My machine will continue to sew, but this code comes up every time I turn the machine on - then the machine sets itself up normally and will sew fine. Plus, changing the batteries cancels all the memorized information on my machine.

I am not sure if this is the same code you are getting. My Elna 9000 manual does not list any other codes for the machine.

Have you taken your machine to a service dealer to have them check it out?
Best of luck. I know it is frustrating when you are in the middle of a project and have to stop to have your machine serviced.
Doreen

Most likely this is a problem in the foot control and it will need to be replaced or repaired.
sewman7