Aspetta! Amid a contract dispute with several cast members and resistance from Italian nightclubs, filming for the fourth season of "Jersey Shore" has been delayed at least a month, according to a new report. "Several of the housemates haven't signed their contracts and until they do, the cast can't go to Italy...with the contract troubles they won’t be leaving until May," a production insider revealed to RadarOnline.com. "Producers are also having a really difficult time finding venues for the cast to party at too," the source added.The cast was set to fly to Florence on April 18 to begin filming the smash-hit reality show, but the majority of housemates have yet to sign their contracts due to monetary disputes."Snooki, The Situation, J-Woww and Pauly D have not finalized their contracts because they can’t agree on the amount," a source close to production said last week.It has also been reported that as the show has begun to air in Italy, citizens do not want the "Shore’s" guidos and guidettes running amok in their country."They embody the worst stereotypes of Italians, multiplied by thousands and Americanized," columnist Roberto Del Bove lamented in the Rome newspaper New Notzie last week.These snafus are only the latest problems to plague filming of the show’s fourth season --earlier this year cast member Ronnie Ortiz-Magro had trouble securing a work visa due to an outstanding assault case related to a 2009 incident in Seaside Heights, NJ. The incident occurred during filming of the first season of "Jersey Shore" and aired on MTV last year.