Looking for logging into the Info Yowsup.common.http.warequest 49 Status Fail Reason Old_version site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Info Yowsup.common.http.warequest 49 Status Fail Reason Old_version site. After that you can login as usual with your login credentials.
https://github.com/tgalal/yowsup/issues/1898
https://github.com/tgalal/yowsup/issues/2626
https://github.com/tgalal/yowsup/issues/2062
https://stackoverflow.com/questions/42326309/fixing-old-version-on-yowsup
https://forum.fhem.de/index.php?topic=27543.1575
https://forum.fhem.de/index.php?topic=27543.1605
https://forum.fhem.de/index.php?topic=27543.1380
https://forum.fhem.de/index.php?topic=27543.1035
https://gitter.im/tgalal/yowsup/archives/2016/08/27
https://www.meintechblog.de/2016/07/whatsapp-nachrichten-bilder-mit-fhem-versenden-und-antworten-auswerten/
https://www.bountysource.com/issues/40726218-number-registration-status-fail-reason-old-version
https://www.bountysource.com/issues/30003849-yowsup-cli-registration-failed-reason-blocked
https://www.bountysource.com/issues/31609581-unable-to-do-registration