DMCA Website takedown?

I have a consumer saas app which I built myself and have not used any copyrighted materials, all my images were AI generated all text was done by me it was running for 4 months no issue.

I remixed the project to make a similar Saas but for a different niche, and I believe this is where I went wrong. Used images from a licensing site and these images must have not been available.

2 days after I publish the site both this remixed version and the one I originally made were taken down for DMCA violations.

My problem is that I have a lot of customers and site views, any way to speed up the process and has anyone had experience with this and how it goes?

thanks