Problems while searching for a new upstream version

package:
nss-updatedb
severity:
high
created:
2017-11-21
last updated:
2019-06-18

uscan had problems while searching for a new upstream version:
In watchfile debian/watch, reading webpage
  http://www.padl.com/download/ failed: 500 Can't connect to www.padl.com:443 (certificate verify failed)