How to respond the "load error:gsl?

Dear all,

I am beginner of FreeFem++ version 4.3-1.
When I run the FreeFem++ script which my colleague made by FreeFem++ version 3.5.6., the run was stop with the following message in command prompt.

Could you please kindly tell me how to response this alert?

-- FreeFem++ v 4.200001 (date Sat, Jun 08, 2019 6:08:22 PM git v4.2.1) Load: lg_fem lg_mesh lg_mesh3 eigenvalue 1 : load "iovtk"(load: loadLibary C:\Program Files (x86)\FreeFem++\\.\iovtk = 0) load: iovtk ; 2 : load "gsl" load error : gsl fail : list prefix: 'C:\Program Files (x86)\FreeFem++\\.\' list suffix : '' , '.dll' current line = 2 Load error : gsl line number :2, gsl error Load error : gsl line number :2, gsl code = 2 mpirank: 0 try getConsole C:\Users\nakai\OneDrive\デスクトップ\version6.edp save log in : 'C:\Users\nakai\OneDrive\デスクトップ\version6.log' wait enter ?