The Maplewood-based ice cream business, One World Ice Cream, is soon shutting down operations, according to its founder Susan Spitz-Morrison. Spitz-Morrison, on a whim, she said, early this year applied for a position with Lutheran Hour Ministries, and got the job. She started in early May. When Spitz-Morrison was interviewing, she was caught in between, she said. She was holding off on trying to get into more locations because she didn’t know she would be able to fulfill them.