==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9
- Deployed with iRedMail Easy or the downloadable installer? downloadable
- Linux/BSD distribution name and version: CentOS Linux release 7.6.1810
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx):Nginx
- Manage mail accounts with iRedAdmin-Pro? Yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hello Zhang,
I was unable to update versions 3.3 and 3.4. When accessing the license page it displays the error:
Error while getting license info:
% 3Curlopen% 20error% 20% 5BSSL% 3A% 20CERTIFICATE_VERIFY_FAILED% 5D% 20certificate% 20verify% 20failed% 20% 28_ssl.c% 3A618% 29% 3E

Thanks