Docker issue after upgrading DuckDNS add-on

After upgrading the DuckDNS add-on in Hass.io from v1.0 to v1.5, the add-on won’t start anymore. In the log I find this:

18-08-18 07:11:39 WARNING (SyncWorker_19) [hassio.docker.interface] Can’t grap logs from homeassistant/armhf-addon-duckdns: 500 Server Error: Internal Server Error (“can not get logs from container which is dead or marked for removal”)
18-08-18 07:11:40 INFO (SyncWorker_1) [hassio.docker.interface] Clean homeassistant/armhf-addon-duckdns docker application
18-08-18 07:11:41 ERROR (SyncWorker_1) [hassio.docker] Can’t create container from addon_core_duckdns: 409 Client Error: Conflict (“Conflict. The container name “/addon_core_duckdns” is already in use by container “b589f0de8aada38eb8b70343337f800dfc09141d5907ddbd9a1856f3ee97c342”. You have to remove (or rename) that container to be able to reuse that name.”)

How can I fix this?

Some version information:
Hass.io supervisor: 126
Host system: Resin OS 2.3.0+rev1
Home Assistant: 0.69.1

Any help would be appreciated!