Unable to switch to new perl installation about app-perlbrew HOT 4 OPEN

total 4300
drwxr-xr-x 2 robin robin    4096 Sep  1 11:10 ./
drwxr-xr-x 5 robin robin    4096 Aug 31 14:48 ../
-rwxr-xr-x 1 robin robin   15467 Sep  1 11:10 corelist5.37.3*
-rwxr-xr-x 1 robin robin    8452 Sep  1 11:10 cpan5.37.3*
-rwxr-xr-x 1 robin robin   41972 Sep  1 11:10 enc2xs5.37.3*
-rwxr-xr-x 1 robin robin    3161 Sep  1 11:10 encguess5.37.3*
-rwxr-xr-x 1 robin robin   29319 Sep  1 11:10 h2ph5.37.3*
-rwxr-xr-x 1 robin robin   61026 Sep  1 11:10 h2xs5.37.3*
-rwxr-xr-x 1 robin robin    4382 Sep  1 11:10 instmodsh5.37.3*
-rwxr-xr-x 1 robin robin    5084 Sep  1 11:10 json_pp5.37.3*
-rwxr-xr-x 1 robin robin   15870 Sep  1 11:10 libnetcfg5.37.3*
-rwxr-xr-x 1 robin robin 3850104 Sep  1 11:10 perl5.37.3*
-rwxr-xr-x 2 robin robin   45271 Sep  1 11:10 perlbug5.37.3*
-rwxr-xr-x 1 robin robin     354 Sep  1 11:10 perldoc5.37.3*
-rwxr-xr-x 1 robin robin   10948 Sep  1 11:10 perlivp5.37.3*
-rwxr-xr-x 2 robin robin   45271 Sep  1 11:10 perlthanks5.37.3*
-rwxr-xr-x 1 robin robin    8452 Sep  1 11:10 piconv5.37.3*
-rwxr-xr-x 1 robin robin    4628 Sep  1 11:10 pl2pm5.37.3*
-rwxr-xr-x 1 robin robin    4229 Sep  1 11:10 pod2html5.37.3*
-rwxr-xr-x 1 robin robin   15126 Sep  1 11:10 pod2man5.37.3*
-rwxr-xr-x 1 robin robin   10895 Sep  1 11:10 pod2text5.37.3*
-rwxr-xr-x 1 robin robin    4153 Sep  1 11:10 pod2usage5.37.3*
-rwxr-xr-x 1 robin robin    3704 Sep  1 11:10 podchecker5.37.3*
-rwxr-xr-x 1 robin robin   13751 Sep  1 11:10 prove5.37.3*
-rwxr-xr-x 1 robin robin    3658 Sep  1 11:10 ptar5.37.3*
-rwxr-xr-x 1 robin robin    2737 Sep  1 11:10 ptardiff5.37.3*
-rwxr-xr-x 1 robin robin    4487 Sep  1 11:10 ptargrep5.37.3*
-rwxr-xr-x 1 robin robin   10074 Sep  1 11:10 shasum5.37.3*
-rwxr-xr-x 1 robin robin   19541 Sep  1 11:10 splain5.37.3*
-rwxr-xr-x 1 robin robin    8153 Sep  1 11:10 streamzip5.37.3*
-rwxr-xr-x 1 robin robin    5259 Sep  1 11:10 xsubpp5.37.3*
-rwxr-xr-x 1 robin robin   70285 Sep  1 11:10 zipdetails5.37.3*