Always direct to login page when click login to control panel whmcs

Hello i have problem with login from whmcs with root access or server tab it always redirect to login page and not logged in
when i accep order it always accept error encountered

Any soluttions?
I had followed any instruction from Youtube Centos Web Panel and isn't not working

Hi, same trouble.
can you guys give me the best solution? 

  We are in 2024 now and it has not been fixed since 2019. Why is support not creating an update for whmcs? If it wants success, it must fix the API errors so that we can work and have good results so that they find progress. Also, as I see it, this is nonsense because it has not been created. WHMCS module with updates to comply with the WHMCS version a very long time ago