All entities lead to a Server Call Error on SmartAssistV1

I am currently trying to integrate a bot to SmartAssist, and after encountering a few errors, it was suggested to me to switch over to V1. (he helped me with porting over)
But now, I can’t test the bot, because I always encounter a server call failure, and can’t progress through any of the dialogues at all.

There is no known functionality for porting back to v1. What steps exactly did you follow? Was there any instructions given to you over a support ticket?

I believe I expressed myself incorrectly, by porting back to v1 I mean I exported the bot, where I got added to a workspace that was still using v1, and imported the bot into it.