The /import command does not function when replying to the backup file

[mmmTelegram]

./lua/groupbutler/utilities.lua:286: attempt to concatenate field 'filepath' (a nil value)

stack traceback: ./lua/groupbutler/utilities.lua:286: in function 'telegram_file_link' ./lua/groupbutler/plugins/backup.lua:136: in function <./lua/groupbutler/plugins/backup.lua:85> (tail call): ? [C]: in function 'xpcall' ./lua/groupbutler/main.lua:211: in function 'on_msg_receive' ./lua/groupbutler/main.lua:338: in function 'process' ./polling.lua:61: in function <./polling.lua:46> [C]: in function 'pcall' ./polling.lua:81: in main chunk [C]: ? en_GB /import