Here is what Mytrueancestry website says :
My match with
Izjaslav Ingvarevych Prince of Dorogobuzh Rurik Dynasty 1223 AD
VK541
mtDNA: H7Y-DNA: R1a1a1b1a1a1c1h (YP592)
Shared DNA: (Sample Quality: 83)
3 SNP chains (min. 60 SNPs) / 41.33 cM
Largest chain: 186 SNPs / 15.21 cM
Your raw DNA is 73% closer than other matching users
This results suggest that there must be a bloodline connection but I see that Iziaslav Ingvarevich Rurikid and Rurik are connected to the big shared tree, but Maryna Zhubryk is not. I suggest to correct that first.