Previously my vcenter was functioning normally, then an error appeared.
"[400] An error occured while sending an authenticationrequest to the vCenter Single Sign-On server - An error occured when processing the metadata during vCenter Single Sign-Onsetup - Failed to connect to VM ware Lookup service
I then checked my ssl certificate and the result is "Not Such File or Directory) (image 1). Then I tried regenerating the VMCA SSL certificate. certificate added successfully, but still unable to login to vCenter. error 503 Endpoint appears in login (image 2)