Husqvarna Viking Platinum 950E sewing/embroidery machine insists the bobbin is empty, though it's not, and stops sewing every handful of stitches. Can I turn off the sensor to finish this project?

SOURCE: picking up bobbin thread

First easy thing to check, are you using the correct length needle.
If this is not the problem then somehow the needle bar has moved and the the needle depth is to high or the timing is wrong..
Unless you really know what you are doing then I am afraid a sewing machine tech needs to reset the needle depth and subsequently the timing.

SOURCE: Picking up the bobbin thread

A few suggestions:

1. Rethread top of machine from scratch with the presser foot raised, i.e. remove thread completely from all thread guides & paths and start from scratch, making sure thread is securely seated between tension disks. Once the needle is re-threaded, lower the presser foot and give the tail end of the thread a tug to make sure there's tension on it.
2. Make sure the bobbin is turning the correct direction for your machine - and that the thread tail is under the tension plate or bobbin tension guide (depending on machine).
3. Blow out any fuzz.
4. Insert a new needle, making sure needle is pushed all the way up.
5. Oil machine (in locations recommended in your owner's manual).

SOURCE: Not picking up the Bobbin thread

I cleaned the machine good with canned air, oiled it. I took out the bobbin case and cleaned it good also. I then noticed the tension screw on the bobbin case was loose, tightened it and the problem was fixed.

SOURCE: husqvarna viking Platinum 775 fabric won't advance

Most of the time the bobbin case gets hung under the feed dogs, take your needle plate off and the bobbin cover there is a gray colored finger with a number 10 torx screw holding it in you can also try a small flat head screw driver, remove that finger and then remove your bobbin clean the hook out and replace the bobbin making sure it seats itself on the hook with the small notch on the bobbin case lining up with a small metall spring on the back right side of the hook area.

SOURCE: Babylock sewing machine, upper thread is bunching

the tension is wronge has the lower bobbin case been unwound and refilled)(check that this is threaded right as well)