aaP_soft_developer2k
Always is best to format the server. Other folders and permissions etc...
Register a free DigitalOcean server for 2 month free (or Linode, or Vultr, or Kamatera, or AWS Amazon, or Microsoft Azure, or Oracle OCI...) and install aaPanel. Every site migrate 1 to 1. When you are finished, you can format the original server and install aaPanel, migrate...