Yesterday Amarok came back online. What I did was remove the repositories leaving only openSUSE-Tumbleweed- * and Packman Repository. I uninstalled Amarok, reinstalled and used zypper dup. Zypper dup updated Amarok. Today Tumbleweed did not boot. I made a mistake with another task not related to Amarok. I've reinstalled Tumbleweed and it's working normally now. I was positively surprised at the speed of the answers. Thank you all.