This is incorrect. Debelo brdo is 1597 m high peak, 400 m on SE (SE ridge of Višerujno). This peak is Višerujno, the highest peak.   
Sources:
1. https://www.hps.hr/hp-arhiva/197603.pdf (page 73)
2. https://www.hgss.hr/kartografija/ (map 18, NP Paklenica)
Please revert this change.