this code has a thumbs up$,$ but I$\text{'}$m getting $4$ errors with it

Error in file "stdout.hhf$"$ at line $639[$errid:$1526/$hla$.$flx$]$:

Macro called in file "rolling$13.$hla" at line $15$

stdout.put: Unknown data type $($n$1$:$).$

Near: $<<)>>$

Error in file "stdout.hhf$"$ at line $639[$errid:$1526/$hla$.$flx$]$:

Macro called in file "rolling$13.$hla" at line $32$

stdout.put: Unknown data type $($n$1$:$).$

Near: $<<)>>$

Error in file "stdout.hhf$"$ at line $639[$errid:$1526/$hla$.$flx$]$:

Macro called in file "rolling$13.$hla" at line $50$

stdout.put: Unknown data type $($n$1$:$).$

Near: $<<)>>$

Error in file "stdout.hhf$"$ at line $639[$errid:$1526/$hla$.$flx$]$:

Macro called in file "rolling$13.$hla" at line $68$

stdout.put: Unknown data type $($n$1$:$).$

Near: $<<)>>$