Had site problems (sluggishness, database exports not completing). Chatted with support agent at host, no resolution. He mentioned that he would try to clear some cache in the server. I think he also wanted to check core, files, which is where I suspect he created the problem, thinking it was a WP site.
After leaving the chat, I found that the site was completely down: login page was white, front-end home page was white.
I immediately called support at the host. She mentioned a 500 error, said she could fix it. After 15 minutes or so, she said it was fixed.
But it was not: she had reverted the site to WP 4.9.23. They had no idea that the site was not a WP site.
I uploaded the migration plugin. → Tools → Switch to Classic Press, but got the message:
Sorry, we can’t switch this site to ClassicPress at this time.
Message: Could not communicate with the ClassicPress API server {“status”:“cURL error 60: SSL certificate problem: certificate has expired”}
I don’t know how to fix this issue. I think the same issue on the forum previously elicited this response:
Your server is running out of date software and root certificates, see https://github.com/ClassicPress-research/cp-ssl-fix for a workaround.
But I’m afraid this fix may be out of my technical reach. Can anyone help? I would greatly appreciate assistance. The migration plugin is still installed.
Edit: I uploaded the ClassicPress SSL Fix plugin, activated it, and got the third message, namely, that the site is not able to make either of the API-v1 requests. I enabled the 3-minute insecure requests and tried to migrate but got the same messages about being unable to switch.