getblocktemplate is giving coinbasevalue of 250 YTN instead of 50 YTN

searching through your source code.

version 2.0.1: https://github.com/conan-equal-newone/yenten/blob/51f2ea8aad9cbd1e1c7d16ad1d6de73757981625/src/validation.cpp#L1049

version 1.3.1-qtfix2: https://github.com/conan-equal-newone/yenten/blob/8907aaa0c32763728234487de5e9b82c257a6f57/src/main.cpp#L1213

Did you just accidentally hardfork your coin?