i have the same problem
https://mathrm.110mb.com/wordpress/ <— PROBLEM
https://mathrm.110mb.com <— phpinfo
https://mathrm.phpnet.us/wordpress/ <— WORKS fine
https://mathrm.phpnet.us <— phpinfo
wp-config are the same. but some phpcore-server-configs are different. i think this is the problem.
Thanks!
