My browser / operating system: Windows 7, Firefox 54.0, Flash 26.0 (release 0)

Help me!!! I've got a bug after I've finished my new project (PvZ Shooter) on the offline scratch editor. I clicked save and tried to share to the website then, I typed in my password and username and clicked ok. It lagged a bit then, 5 seconds later it said “Server Error: Invalid_Project”. I tried a few more times but it still said invalid project. I tried sharing another project and it worked correctly then, I tried to share PvZ Shooter but it still doesn't work. Please help me!!!!!!!
My browser / operating system: Windows 7, Firefox 54.0, Flash 26.0 (release 0)My browser / operating system: Windows 7, Firefox 54.0, Flash 26.0 (release 0)

Make sure it is a compatible file type

how do I make it a compatible file type

it already is a .sb2 file but I still can't upload it

Create a new default project in your account and go adding (and saving the project) sprites one each time.

ok

Thanks a lot for that information. I thought it's because the file got corrupted, here it is now: https://scratch.mit.edu/projects/167400432/

someone help Scratch isn't sharing My project on the App help me me me please