Moussa Abu Marzouk also told The Associated Press that reconciliation efforts between his Islamic militant movement and Palestinian President Mahmoud Abbas have been bumpy.
The 63-year-old today said that "there are problems, (but) it's not a crisis."
In recent days, a dispute erupted over salaries for more than 40,000 government employees hired during Hamas' seven-year rule of Gaza. Abbas hasn't said how they would be paid.
Abu Marzouk says Qatar has promised to solve the problem. Abu Marzouk came to Gaza from Egypt in April for reconciliation talks. He said: "I intend to stay.