View Compilation Error

0_0_34685033_31985.cpp: In function 'void InsertTree(Tree*&, char)':
0_0_34685033_31985.cpp:14:30: error: no matching function for call to 'Tree::Tree(char&)'
     Tree* node = new Tree(val);
                              ^
0_0_34685033_31985.cpp:14:30: note: candidates are:
0_0_34685033_31985.cpp:6:8: note: Tree::Tree()
 struct Tree
        ^
0_0_34685033_31985.cpp:6:8: note:   candidate expects 0 arguments, 1 provided
0_0_34685033_31985.cpp:6:8: note: constexpr Tree::Tree(const Tree&)
0_0_34685033_31985.cpp:6:8: note:   no known conversion for argument 1 from 'char' to 'const Tree&'
0_0_34685033_31985.cpp:6:8: note: constexpr Tree::Tree(Tree&&)
0_0_34685033_31985.cpp:6:8: note:   no known conversion for argument 1 from 'char' to 'Tree&&'