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answered 2022-04-04 12:28:46 +0100
As you can see, the file .../sage-9.2/local/share/qepcad/qepcad.helpdoes not exist. You can try to force a reinstallation of qepcad with the command
.../sage-9.2/local/share/qepcad/qepcad.help
qepcad
sage -f qepcad