Booted up RPG Maker Mv and got this error, how can i fix this? Its only for one project, my other ones work fine

Village of Jappoka. What does everyone think?

Made the starting area for a game i am working on

Made a little village

Any idea why this is happening? The green triangle(player) shouldnt be disappearing. Trying to make something like Asteroids

A place

Does anyone know why this is happening and how i can fix it?

One of the Areas that have been remade in Uvery V. 1.2.1

New art is still in the works, slow and steady, and I have been working on remaking the first few areas.

Anyone know how i can fix this? The only solution i found, copy/paste package.json from a new game into the one im working on, didnt work