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Cannot purchase offer

(Debug information, this helps us helping you, you can remove this if you don’t want to share this data, it should not contain any personal or sensitive information)
Device: samsung - SM-A5160 - Android: 13 - WebView: 114.0.5735.196
App-Version: 3.1.0 - 1331
Screen: 412 x 915 px - 2.625dppx

Could you provide more information? This error should show up when you try to purchase Kurviger Tourer (+)? Have you tried to reboot your phone, this might already help with unexpected errors like that.