Unable to open /wflogs/ips.php for reading and writing

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[18-Aug-2017 14:12:11 America/Los_Angeles] Unable to open D:\home\site\wwwroot/wp-content/wflogs/ips.php for reading and writing.

Hi,

Using IIS PHP7.1 and receiving this error. It is timing out the site by the looks of it.
Found this but not sure how to change perms or if this is correct:
https://wordpress.org/support/topic/unable-to-open-wp-contentwflogsips-php/

Thanks in advance