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I got a "wine packages is unavailable" error

 

 playonlinux
Looking for python... 2.7.18 - wxversion(s): 3.0-gtk3
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[main] Message: PlayOnLinux (4.3.4) is starting
[clean_tmp] Message: PlayOnLinux seems to be already running. Don't cleaning tmp
[Check_OpenGL] Warning: check_dd_x86 missing, test skipped
[Check_OpenGL] Warning: check_dd_amd64 missing, test skipped
[POL_System_CheckFS] Message: Checking filesystem for /home/user/.PlayOnLinux/
[main] Message: Filesystem is compatible
[install_plugins] Message: Checking plugin: ScreenCap...
[install_plugins] Message: Checking plugin: PlayOnLinux Vault...
[update_check] Message: List is up to date
<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:727)>
 <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:727)>

here is the log.

please help me

os version is ubuntu 20.04