PhpStorm git php coloring disappear

Thank you all for you help as always ..

I have a problem in phpstorm that when i restart or i don`t know when ! , the php coloring of the file disappear .. i think there is a relation with git ..

i tried add and commit but still the same problem all the code is white .. and the file name is piege !!

i have had to delete the file and create it again .