ran out of podcast ideas 

writer's block 

/ˌrʌɪtəz ˈblɒk/ phrase of writer the condition of being unable to think of what to write or how to proceed with writing. "the novelist recovered from a two-year bout with writer's block" Writer's block Description

#Writersblock is a condition, primarily associated with writing, in which an author loses the ability to produce new work or experiences a creative slowdown. This loss of ability to write and produce new work is not a result of commitment problems or lack of writing skills. Wikipedia