Guests get white page if ssi.php used

[NukeWorker.com]

My forum is 2.0.17
Recently (around the time I upgraded to 2.0.17), guests have been presented with a blank page, on any 'non-forum' page that includes ssi.php. (the header before the ssi.php include is displayed if you inspect the page)

I tried uninstalling the 2.0.17 mod back to 2.0.16, and the issue persists, so I have re-installed 2.0.17.
If a user logs in, they can see those pages.

This is a feature I NEED,  since my homepage and many other key pages use ssi.php.
Please guide me in the right direction.  I have read the other 2.0.17 errors posted, and they are not the same issue.  I've been using SMF without issue for many years.

[Illori]

anything in the server error log?

[NukeWorker.com]

anything in the server error log?

Nothing in the SMF error log.
Nothing in the server.php.error.log

[Sir Osis of Liver]

Security on your server has been changed since I was last connected via ftp.  Have you asked host support if they've done anything recently?

[NukeWorker.com]

Security on your server has been changed since I was last connected via ftp.  Have you asked host support if they've done anything recently?

Around 6 months ago we transferred from Rackspace to Liquidweb, which uses cpanel, etc.
Email sent to Krash with cpanel info.

[Sir Osis of Liver]

Didn't get it.  PM me on your forum.

[NukeWorker.com]

Didn't get it.  PM me on your forum.

sent

[Sir Osis of Liver]

Post and PM editors are stripping linebreaks.  Anyone know what causes this?

[Sir Osis of Liver]

Getting back to original problem, SSI include causes some external pages to load blank for guests, load normally if logged in.  Problem appears in 2.0.16, remains in .17, disappears if reverted back to .15.  No forum errors, server is logging these -

Code Select Expand


[Sat Mar 21 16:14:56.052204 2020] [include:error] unable to include potential exec "/forum/SSI.php?ssi_function=latestMember" in parsed file /home/mrennhack/public_html/study/hp/chp/index.shtml, content type not text/*, referer: https://www.nukeworker.com/forum/index.php/topic,35659.0.html
[Sat Mar 21 16:14:56.051263 2020] [include:error] unable to include potential exec "/pictures/statistics_ssi.php" in parsed file /home/mrennhack/public_html/study/hp/chp/index.shtml, content type not text/*, referer: https://www.nukeworker.com/forum/index.php/topic,35659.0.html
[Sat Mar 21 16:14:56.049940 2020] [include:error] unable to include potential exec "/forum/SSI.php?ssi_function=boardStats" in parsed file /home/mrennhack/public_html/study/hp/chp/index.shtml, content type not text/*, referer: https://www.nukeworker.com/forum/index.php/topic,35659.0.html
[Sat Mar 21 16:14:56.049027 2020] [include:error] unable to include potential exec "/forum/SSI.php?ssi_function=logOnline" in parsed file /home/mrennhack/public_html/study/hp/chp/index.shtml, content type not text/*, referer: https://www.nukeworker.com/forum/index.php/topic,35659.0.html
[Sat Mar 21 16:14:56.048096 2020] [include:error] unable to include potential exec "/forum/SSI.php?ssi_function=logout" in parsed file /home/mrennhack/public_html/study/hp/chp/index.shtml, content type not text/*, referer: https://www.nukeworker.com/forum/index.php/topic,35659.0.html
[Sat Mar 21 16:14:56.047173 2020] [include:error] unable to include potential exec "/forum/SSI.php?ssi_function=welcome" in parsed file /home/mrennhack/public_html/study/hp/chp/index.shtml, content type not text/*, referer: https://www.nukeworker.com/forum/index.php/topic,35659.0.html


/public_html/study/hp/chp/index.shtml is html/js, nothing obviously wrong with it and causes no problems in 2.0.15.

[NukeWorker.com]

You can ignore the errors in "study/hp/chp/index.shtml"

It had code in it from SMF 1.0

I have deleted that page, it won't be bothering us any more.