Question: For what reason was the character portrayed by Paul Kalkbrenner in "Berlin Calling" institutionalized?
Context: Paul Kalkbrenner (] ) (born 11 June 1977) is a German live act, producer of electronic music, and actor from Berlin.  Because he breaks down his tracks into elements that are reassembled onstage, Kalkbrenner is considered a live act, as opposed to a DJ.  He is most known for his single “Sky and Sand,” which sold over 200,000 copies, went platinum, and was highly charted in countries such as Belgium and Germany.  He is also known for portraying the main character Ickarus in the movie, “Berlin Calling” written and directed by Hannes Stöhr, which ran for several years at Kino Central in Berlin. Anthony "Tony" Almeida is a fictional character portrayed by Carlos Bernard on the television series "24".  Almeida appeared in a total of 124 episodes (including ""), the third highest number of episodes of any character in the series behind Chloe O'Brian (125) and Jack Bauer (192), portrayed by Mary Lynn Rajskub and Kiefer Sutherland, respectively. Sky and Sand is a song by German electronic music producers Paul Kalkbrenner and Fritz Kalkbrenner.  The song was originally produced as the title song of the German movie Berlin Calling written and directed by Hannes Stöhr .  It was first released on the Berlin Calling movie soundtrack album in October 2008 and in February 2009 as a single. Tom Friendly, often referred to as Tom or Mr. Friendly, is a fictional character portrayed by M. C. Gainey on the American Broadcasting Company (ABC) television series "Lost".  The series follows the lives of around forty survivors from the crash of Oceanic Flight 815.  The survivors find themselves on a mysterious tropical island, and interact with a group known as the Others, who appear to have lived on the island since long before the crash.  Tom is an influential member of the Others, and is introduced in 2005 in the season one finale "Exodus: Part 2", where he kidnaps one of the survivors.  The character makes another fifteen appearances before being killed in the season three finale "Through the Looking Glass".  Tom appears twice in season four in the flashbacks of other characters.  Gainey was initially credited as playing "bearded man" and then as "Mr. Friendly" throughout season two before the character was given a first name.  In a montage of deceased characters shown at Comic-Con in 2009, the "Lost" producers present the character's full name as "Tom Friendly". Berlin Calling is a 2014 documentary film starring Kastle Waserman and Benjamin Waserman.  Written by Nigel Dick and Kastle Waserman, and directed by Nigel Dick. Berlin Calling is a 2008 German tragicomedy directed by Hannes Stöhr.  The movie depicts the events following DJ and producer Ickarus's (Paul Kalkbrenner) institutionalization for drug abuse. Timmy Martin is a fictional character portrayed by child actor Jon Provost in the long-running television series "Lassie" (1954–1973).  Provost debuted in the first episode of the fourth season, "The Runaway" (1957), as the fictional foster child of farm woman Ellen Miller.  Both the character and its portrayer were hits with the show's audience.  In the middle of the fourth season series star George Cleveland died unexpectedly and producers were forced to overhaul the show.  Timmy was fostered (see season 11 Episodes 9, 10 & 11 when the Martins leave Timmy behind to go to Australia and New Lassie Season 1 episode 7 when Timmy (Jon) now adopted and goes by Steve McCough and June Lockhart are reunited) by newcomers to the series Paul Martin and his wife, Ruth, who purchase the Miller farm. Lionel Luthor is a fictional character portrayed by John Glover in the television series "Smallville".  The character was initially a recurring guest in season one, and became a series regular in season two and continued until being written out of the show in season seven.  The character returned to the show in season ten again as a recurring guest role as a parallel universe (Earth-2) version of the character.  In "Smallville", Lionel Luthor is the father of Lex Luthor (Michael Rosenbaum), and founder and CEO of LuthorCorp.  Lex Luthor's father was first introduced in "Superman" comics by Jerry Siegel in 1961 and has since appeared in other Superman-related media under different names.  "Smallville" is the first appearance in which the character has been an intricate part of a Superman adaptation.  Series developers Alfred Gough and Miles Millar created Lionel Luthor for "Smallville" to provide an antithesis to the parenting style of Jonathan Kent (John Schneider) and Martha Kent (Annette O'Toole). The Age of Reason; Being an Investigation of True and Fabulous Theology is a work by English and American political activist Thomas Paine, arguing for the philosophical position of Deism.  It follows in the tradition of eighteenth-century British deism, and challenges institutionalized religion and the legitimacy of the Bible.  It was published in three parts in 1794, 1795, and 1807.  It was a best-seller in the United States, where it caused a short-lived deistic revival.  British audiences, however, fearing increased political radicalism as a result of the French Revolution, received it with more hostility.  "The Age of Reason" presents common deistic arguments; for example, it highlights what Paine saw as corruption of the Christian Church and criticizes its efforts to acquire political power.  Paine advocates reason in the place of revelation, leading him to reject miracles and to view the Bible as "an ordinary piece of literature rather than as a divinely inspired text".  It promotes natural religion and argues for the existence of a creator-God. Sea Star Festival is a music festival organized by the team behind EXIT festival in Serbia.  It was held for the first time on 25–28 May 2017 at the Stella Maris resort in the town of Umag, Croatia with the attendance of 50.000 people.  Although it was planned to be a two-day festival, Day Zero was held on 25 May, as well as an after-party on the 28h of May 2017.  It was one of four festivals of "EXIT Summer of Love 2017".  The headlining acts for Sea Star 2017 included The Prodigy, Fatboy Slim, Paul Kalkbrenner, Dubioza kolektiv, Modestep LIVE, Pendulum DJ Set, Urban&4, Spiller, UMEK, Marko Nastić, S.A.R.S., Artan Lili, Bad Copy, Brkovi, Elemental, High 5&Kuku$, Pips, Chips & Videoclips, Jonathan, Kiša metaka, Krankšvester, Matter, Sassja and many more.  As many as 70 performers ranging from rock and pop acts to electronic, metal and punk performed on seven stages at the site of the festival.
Answer: drug abuse