Parse error: syntax error, unexpected '[', expecting ')'......

What is this ?

Parse error: syntax error, unexpected '[', expecting ')' in /data/0/5/052b12d4-924c-4e3f-8d31-665942d1c230/mywebsite.com/web/site.php on line 46

Here is my site.php

rg90 what php version is your website running as?

Yes right, i test new hosting so they use 5.3 in default i change to 8.0 and ok
Thanks