Whether she actually believed it or not is one thing, but she doesn't seem to have any aversion to paranormal topics.

Literal

Was-believing [question-か][whether-どうか] [topic-は] [aside-from-ともかく], paranormal-[attributive-な] topics [to-に] rejection-reaction [subject-が] exist [called-ということ] [topic-は] not-exist [seems-ようだ].

A nuanced observation. ~かどうかはともかく ('whether X or not is beside the point') is a set phrase for setting aside one question to address another. 拒絶反応 ('rejection reaction') is a medical term (immunological rejection) used metaphorically for emotional/psychological aversion — 'hate response.' ~ということはない 'it's not the case that' is a common soft denial. 超常的 'paranormal, supernatural' (na-adjective with ~的).