Can't run on Fedora 31

Hi. I trying to run pling on Fedora 31, but gives me this error:

[bkdwt@localhost Downloads]$ ./pling-store-5.0.1-1-x86_64.AppImage
INFO: imwheel started (pid=10334)
Fontconfig warning: "/usr/share/fontconfig/conf.avail/05-reset-dirs-sample.conf", line 6: unknown element "reset-dirs"
[ocs-manager] qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: xcb.


ocs-manager exited with code null

Other applications in this format work perfectly. Can you help me? Thanks in advance!