Trying to install a pack I get
?- pack_install(liftcover).
% Contacting server at https://www.swi-prolog.org/pack/query ...
ERROR: url `'https://www.swi-prolog.org/pack/query'' does not exist (status(503,first byte timeout))
Trying to install a pack I get
?- pack_install(liftcover).
% Contacting server at https://www.swi-prolog.org/pack/query ...
ERROR: url `'https://www.swi-prolog.org/pack/query'' does not exist (status(503,first byte timeout))
Should be ok again. There was a problem with the pack backend.
There was a more persistent problem resulting from a corrupted file after a crash due to a power failure. It seems both backends are happy again.