How to fix this error

[GalingMerah]

setup.sh: 80: Bad substitution dpkg: error processing package apkmod (--configure): installed apkmod package post-installation script subprocess returned error exit status 2 dpkg: dependency problems prevent configuration of haxrat: haxrat depends on apkmod; however: Package apkmod is not configured yet.

dpkg: error processing package haxrat (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: apkmod haxrat E: Sub-process /data/data/com.termux/files/usr/bin/dpkg returned an error code (1)