Check your needle... that is the usual cause. Here's a troubleshooting tip about skipped stitches:
CL for "
I hope that changing your needle is all it takes to fix it! You should probably use a somewhat heavier needle the next time, maybe even a jeans/denim needle.
It is also possible that you have knocked your machine out of timing in the process. If that is the case then it is not a self-service fix.
LOL! Glad it was something so simple.