it won't let me get past this step

[ruseartz]

Which environment you are using ?

None

Describe the bug

"[?] Do you want to change Mask URL? [y/N]" if I type y on n it comes with with "zphisher.sh: line 552: ${mask_op,,}: bad substitution" no matter what one im on

Provide log output [Optional]

[?] Do you want to change Mask URL? [y/N] : N
zphisher.sh: line 552: ${mask_op,,}: bad substitution

[gabeagc]

Were you able to solve it?