Cirtuvivint/Olaparib in Breast Cancer Susceptibility Gene/Homologous Recombination Deficiency Platinum Resistant Ovarian Cancer

The purpose of this study is to learn about the safety and tolerability of Cirtuvivint in combination with Olaparib in platinum resistant ovarian cancer. The study also aims to determine the recommended dose of the combination therapy. If a participant is a good fit for the study, and they enroll in the study, they will: * Visit the clinic often at the beginning of the study for physical exams, blood draws, vital signs, and other study and routine care procedures. After the first two months participants will visit the clinic every 28 days. * Take the study medications, Cirtuvivint and Olaparib. Participants will take Olaparib every day. Participants will either take Cirtuvivint 5 days per week or 2 days per week.