Your question has no simple answer, so start with this and draw your own conclusions, SEC.Gov 10K, a stack of Convertible Promissory Notes:

7 CONVERTIBLE PROMISSORY NOTE rton_ex104.htm
8 CONVERTIBLE PROMISSORY NOTE rton_ex105.htm
9 CONVERTIBLE PROMISSORY NOTE rton_ex106.htm
10 CONVERTIBLE PROMISSORY NOTE rton_ex107.htm
11 CONVERTIBLE PROMISSORY NOTE rton_ex108.htm
12 CONVERTIBLE PROMISSORY NOTE rton_ex109.htm
13 CONVERTIBLE PROMISSORY NOTE rton_ex1010.htm
14 CONVERTIBLE PROMISSORY NOTE rton_ex1011.htm

Also see the Harbinger report (projection .70 to $1.40 next few months) several of the notes are there if you don’t want to mess with the 10K.

SO! and IN MY OWN OPINION ONLY: $RTON did not have the funds to pay off the notes and they became toxic. The toxic lenders took advantage (over advantage) and burned $RTON badly (one toxic note is just now finishing up).

The next loan comes due in November, but $RTON should have the money to cover it.

IF the toxic loans had not kicked in I believe we would be trading at a buck.