Having error downloading my App

I’m having these problems downloading (apk, iOS) or copying the app…
please help me it would mean so much to me

(apk download) App Download Error: Not Found

(Make copy) Save copy error
Problem communicating with server. HTTP status: 500, server message:

(iOS) No such object: thunkable-x-production/users/5b9e25c8fac42effbe18d5a2/projects/5bc6190359c4e6500f6c3f80/assets/5bd22e654165a316f4077bd8

(iOS email) Reference ID: bc2c5829-c81e-4c57-8925-c2055b1facc8

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