Wrong years in Taiwanese coins [επιλυμένο]

Hello, I'm still fairly new to Numista and made many changes on the Numista catalogue with mis-information but I can’t figure out where I can go for these changes. The following links have coins where the year was incorrectly transferred from the Chinese republican to the Gregorian calendar in the features box.
Ex. Year 80 = 1991

https://en.numista.com/catalogue/pieces1587.html
https://en.numista.com/catalogue/pieces3505.html
https://en.numista.com/catalogue/pieces2962.html
https://en.numista.com/catalogue/pieces966.html

Hi,
not sure to understand what you want to achieve here.

Do you want to change the date of the line? (i.e. year 80 does not exist for this coin)
Or change the equivalence itself that year 80 of ROC calendar is 1991 in Gregorian calendar? (if so, why?)

Hello, I wanted to Change the year of the coin links above because they are wrong
https://en.numista.com/catalogue/pieces1587.html

year 70 of roc is 1981 not 1987. There is the same mistake on all the coin links I have above but with different years.
year 1 of ROC is 1912 so each year of ROC your suppose to add 11 years to find what year it is on the Gregorian calander

Ok, understand now. And it's fixed