crash on testing > corrupt file

seems to random happening, but is second time now, and my file is corrupt again, i have backups but lost a hole part again, is there a way to fix it?

i still open it but running it gives problems...

just happens random on run layout, while i did run it before on numerous sheets and layouts maybe because it doesn't find a file on my server on that time...

1st error > reason of crash

Cannot find file on disk to return over HTTP

Condition: FileExists(disk_path)

File: HttpFileServer.cpp

Line: 277

Function: void __cdecl HttpFileServer::ServerRespond(struct _HTTP_REQUEST_V2 *)

Build: release 70 (64-bit) checked

Component: HTML5 exporter

(Last Win32 error: 2)

i managed to fix it by saving as a project and putting a sprite in folder where construct says he couldnt find it