Due to an urgent family matter, Travis has had to return home to the States. The Glasgow, Belfast, and Dublin shows are being postponed. More information in regards to his return to Europe and rescheduled dates will be provided as soon as available.
— blink-182 (@blink182) September 1, 2023
Source: https://www.buzzfeed.com/ellendurney/kourtney-kardashian-better-travis-barker-tour-postponed