Hi thanks for asking question.
Noted you have very mild elevation of liver enzymes.
You also have history of cancer.
So here your enzymes elevation could be secondary to cancer.
Do first USG of abdomen to rule out
fatty liver like pathology.
If liver pathology present then take care regarding avoiding
trans fat , taking more fruits , omega 3 fatty acid oil good , regular exercise.
You have not mentioned which cancer was present.If
melanoma was the cause although chances here less but liver metastasis can present that should be ruled out by USG and FNAC if needed.
If you have muscle trauma or muscle pathology then also enzymes can be elevated.
Also if heart problem history present in nearby past then it can also lead to elevated enzymes.
Wish you good health.
Take care. .