ERROR when opening my project : unable to open repo.noindex. Tried to solve but still get the prob

Dear Community,

I am turning to you, a little desperate. I have a Character Animator project that is part of a larger After Effects project. When I open my After Effects project, I get an error like "Failed to connect to Adobe Dynamic Link Source". Indeed, when I try to open the CA project, I get an error like "Unable to open repo.noindex". This seems to be a fairly common error. I followed the advice given in different posts on the same subject: move the files locally, tried to repair the file as suggested here by Danbroken but I stille get the same...

I really need some help...

Thank you in advance!

Julie