objccoll.o: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/lib/x86_64-linux-gnu/gap/bin/objccoll.o - from package: gap-dev

You may install the required package with command apt-get install {package}
Error in other languages:
objccoll.o: bevel nie gevind nie
objccoll.o: comandă negăsită
objccoll.o: comando não encontrado
objccoll.o: commande introuvable
objccoll.o: command not found
objccoll.o: käsku ei ole
objccoll.o: không tìm thấy lệnh
objccoll.o: komanda nerasta
objccoll.o: Kommando nicht gefunden.
objccoll.o: kommandot finns inte
objccoll.o: komut yok
objccoll.o: nie znaleziono polecenia
objccoll.o: níor aimsíodh an t-ordú
objccoll.o: no se encontró la orden
objccoll.o: no s'ha trobat l'ordre
objccoll.o: opdracht niet gevonden
objccoll.o: parancs nem található
objccoll.o: perintah tidak ditemukan
objccoll.o: príkaz nenájdený
objccoll.o: příkaz nenalezen
objccoll.o: команда не найдена
objccoll.o: командата не е открита
objccoll.o: 命令找不到
objccoll.o: コマンドが見つかりません