Limited presale. More tickets are available at the club. A presale ticket does not guarantee entry, and the club reserves the right to refuse admission. In case of refusal, the ticket price will be refunded via RA (excluding fees). 5€ re-entry fee may apply. Please note that the non-smoking regulations apply in the club. Smoking is only allowed in the designated outdoor area. Heatwave warning: Prolonged exposure may result in dancing, sweating, flirting, collective joy and unexpected connections. This summer, 4Q4 ERROR returns to Kater for its second full festival edition. Together with 20+ local and international queer, flinta* and allied collectives, we gather to create space for connection, expression, pleasure, solidarity and everything that happens in between. Expect 3 days of music, daytime activities, artisan markets, open decks, workshops, performances, collective joy and more Collectives joining the heatwave BLVSH frog SPECTRA Crush Taranau casadephunk Others to the Front XOXA Fogo No Cuu Bash is Back Zwamp Queer Vinyl Night Uncompressed Sueya Party Dyke Nipple Liberation Army (FYG) Flur Funk Queerpool Berlin Spoken Word Whacking Berlin