Mrs. Anju
Your lagna is in Sagittarius. Mars is in 8th house, Cancer is a watery sign. Mars is debilitated means Mars can be weak to give his effect. When fire is immersed in water, the fire effect is mitigated. Likewise Mars dosha will be less. But the planets have full strength in the zodiac.
As Navneet Sir discussed above, when Mars is in 1st, 2nd, 4th, 7th, 8th and 12th houses either from Lagna or Moon or Venus, it is called Mars dosha. But exceptions are also there. I said above is one of the exceptions. If one marriage is over then for second marriage the Mars dosha effect would not be there. I trust it may not be true.
As per KP system, for 2nd marriage we check the 2nd house. 2nd cusp sub lord Rahu is signifying Sun in 5th house and sub of Venus (lord of 11th – fulfilment of desires) in 6th house and also signifying 8th house. Even you have 2nd marriage, there would be tensions and separation only. You will maintain a relation with someone, but that ends in troubles.
Present period is of Saturn dasa Venus bhukti upto 8-10-2027. There are chances in the period 21-7-2025 to 19-3-2026. I hope the time of birth is not accurate. Your 1st marriage and divorce were in the period 17-10-2001 to 17-10-2017.
Good Luck
JVS Rao (KP system follower)