My Mojo disappears for a while, everyone's does.
I recently had a colleague say "I'm having a c**p month, I don't think I could buy a f*****g decent picture"
If your shooting professionally, you can't just put the camera down for a couple of weeks, and wait for it to pass.
I recently had a job, i wasn't happy when I left, but had run out of time, I hated looking at the images, and managed to pick two frames that I thought were ok, so I just submitted the two frames (typically I aim for 6 minimum) irritated that I hadn't done a good job, and spent the weekend feeling like a failure, and not happy with any pics I took over the weekend.
Walked into the office on Monday and the picture editor said "nice job mate, I love the second frame, but in future try and give us a few more options"
That simple comment (he did genuinely like the pic) made me feel much better, and I feel like my photography got a little bit better, my mojo was back.
Part of that may simply be how I interact with people when i feel I'm having an off day, vs when I feel like I'm doing well, but you just have to push through the off days (or weeks) - eventually you will take a picture that will bring the mojo back, you just can't force it.
That said, try shooting something different.
If you typically shoot Motorsport, go and chase birds for a day, if macro is your thing, try shooting people.
If you typically use a long lens, try a wide angle, just mix it up a little bit.