Safety device been activated. baby lock elegant 2

Upper threading is wrong. Thread could be catching on the end of the spool. What machine are you using?

Completely unthread the top and bobbin threads. Clean any lint build up out of the bobbin race assembly using the little brush and some canned air. Check that the needle is inserted correctly...with the flat side towards the back. Then carefully rethread the top and the bobbin threads. Make sure the bobbin is inserted correctly...if it's backwards the machine won't sew properly.

Try these suggestions and see if they help
1. Change the needle--use a needle that's for the fabric being sewed
2. Rethread the machine--top --make sure to use every thread guide
3. try a different bobbin--make sure bobbin is inserted correctly into the bobbin case, & make sure the bobbin is turned the correct way in the bobbin case
4. make sure the thread has not come off the thread take up lever
5. Clean under the needle plate & in the bobbin area for lint or threads
6. Check to make sure the bobbin is not warped or damaged
7. Make sure the bobbin case is correctly in the machine,, if it's a top loading bobbin you may need to have the bobbin case checked to see if it's damaged or see if the hook and hook race has a problem
8. Also could be a timing problem, and the machine would need to be checked.

try changing the needle--one that is correct for the fabric being sewed

make sure the top thread has not come off the thread take up lever

try taking the bobbin out (make sure to notice which way the
bobbin is turned ) and turn the bobbin the opposite way, and put it back into the bobbin case,, cause one way you put the bobbin in will
cause it to jam the other way it will sew.

I would definitely call the repair man and ask him exactly what he did
to the machine as far as maintenance? some just clean alittle , yes, I
would ask him if he knew about the bobbin case or hook and hook race
or shuttle which every one you have being 90 degrees off.
I've had others say that they took their machine to be serviced and
then they got it back they had the same problem.

since the machine jamed, I would suggest changing the needle incase it got bent or damaged
the reason for the birds nest under the fabric, the thread came off the thread take up lever, if it does it again you can try a piece of tape over it so the thread won't come off of the thread take up lever again
I use to have trouble with mine doing that.

There are a few problems this could be. Your top thread could be broken or about to break; your bobbin thread could be broken, about to break or empty/about to become empty and is loose around the bobbin; you could have a birds' nest (a mass of thread just under the fabric/presser foot and/or within the feed dog and bobbin) forming and causing a jam; or it could be your Futura having a little bit of a hissy fit. Obviously, if you've checked for broken thread you need to move on. Check for a birds' nest by removing the fabric and clip your threads. If you find one, clear it, rethread your bobbin and begin sewing again. If there's no birds' nest, then place the fabric back in and try sewing/embroidering again. If the machine acts up again, I recommend removing the fabric/hoop, rethreading your top and bobbin threads, replacing fabric/hoop and resuming where you left off. If the machine still gives you trouble, try hitting the start button for a couple of times and seeing if the problem doesn't simply resolve itself. When you're embroidering areas that have a few small, short stitches only, the machine seems to act up a little and then behaves fine once you bypass the area. Be sure to take all of the other steps first, though, because a birds' nest will RUIN a beautiful seam or embroidery.

This annoys the heck out of me, cause it happens a lot more than it should. There can be some valid reasons as to why it happens, though.

Your top thread could be broken or about to break; your bobbin thread could be broken, about to break or empty/about to become empty and is loose around the bobbin; you could have a birds' nest (a mass of thread just under the fabric/presser foot and/or within the feed dog and bobbin) forming and causing a jam; or it could be your Futura having a little bit of a hissy fit. Obviously, if you've checked for broken thread you need to move on. Check for a birds' nest by removing the fabric and clip your threads. If you find one, clear it, rethread your bobbin and begin sewing again. If there's no birds' nest, then place the fabric back in and try sewing/embroidering again. If the machine acts up again, I recommend removing the fabric/hoop, rethreading your top and bobbin threads, replacing fabric/hoop and resuming where you left off. If the machine still gives you trouble, try hitting the start button for a couple of times and seeing if the problem doesn't simply resolve itself. When you're embroidering areas that have a few small, short stitches only, the machine seems to act up a little and then behaves fine once you bypass the area. Be sure to take all of the other steps first, though, because a birds' nest will RUIN a beautiful seam or embroidery.

Did you engage the feed dogs for sewing?

The tension must have gotten loose during use, try adjust the tension on the thread, and the bobbin casing.