Minecraft Optifine won't start anymore?

It was still possible yesterday. When I wanted to play Minecraft today, it happened.

I tried several times, but it doesn't work.

Try it by simply uninstalling it and then downloading it again.

Okay i'm trying

Is that just opitfine or other things? If it doesn't work at all, I would recommend the labymod, because opitfine is included and you have several nice things with you