getting an error when I try to upload .png files

[tunetti]

I am using 8.36. Any ideas?

[tunetti]

Here's the code:

<input type="hidden" name="conditions1" value=":@
@TEST@first_file~/^.*\.(pdf|jpg|jpeg|gif|png)$/i@You can only upload PDF or graphics files@:
@TEST@first_file#<10240@Maximum file upload size is 10 kilobytes.@" /></form>