mpl_Explode selected track RS5k instances to new tracks

[Axel-Erfurt]

OS: LMDE6 (Debian 12), Reaper v7.26+dev1030

It works for one RS5k only and I get this error

..._Explode selected track RS5k instances to new tracks.lua:26: attempt to call a nil value (global 'MPL_ReduceFXname')

I've commented out

RenameTrAsFirstInstance(dest_track)

at the end of function main(), then it works.