Bernina 1130 not catching bobbin thread

Question

A needle broke on my Bernina 1130 and I had to take off the plate and remove the bobbin to get it out. Don't know if I damaged anything in so doing but then cleaned out lint and oiled and put case back in and the machine does not catch the bobbin thread. When I put the thread up manually to simulate the correct thread position and try sewing I cannot do a straight stitch at all but the zig zag stitch makes a straight stitch -- not perfectly -- moving the needle in a zig sag position but stitching straight. Is this something I can fix or does the machine need to go in for repairs?