I agree with woofgang. Reboil and add lemon juice or pectin. Try the setting test after reboiling and adding the pectin or lemon juice by putting a teaspoon of jam on a cold saucer (put a saucer in the freezer for about ten minutes to make sure that the saucer is cold enough for the hot jam to set) If it is not ready for bottling, try boiling it a little longer until setting point is reached. It is better to have a reduction of jam that has set than plenty of liquidy stuff.