WPIntell

Source evidence

Unable to activate plugin

Cost Calculator Builder · support · 2026-02-01T21:49:00+00:00

mixedsentiment
highseverity
0.95relevance
6replies
Evidence linked to opportunitycommercial context

Proof Health

Open evidence

Commercial opportunities need traceable source links before they are treated as build-worthy.

3 / 33 rows with source links

9.1% of this page's analysis has direct source links.

0 build-decision rows missing links

0 rows here require auditable proof before promotion.

30 rows with no attached evidence

0 rows have source counts but still need direct links.

Conversation

support
Jason Houge resolved
Hi There, This seems like a nice plugin that would solve a problem I have but I can’t seem to get it to activate. Are there any known incompatibilities? Or what do you think might be preventing it from activating? Thanks The page I need help with: [ log in to see the link] Hello, Thank you for reaching out. By default there shouldn’t be any restrictions with the plugin activation. You need to make sure that you uploaded the latest version of the plugin and have proper server limits, also try to check by temporarily deactivating extra third-party and caching plugins as well > [ doc ] Best regards The more I am researching the issue, I wonder if it has to do with not being on an Apache server. If the module mod_rewrite is called during install, I suspect it fails. I use OpenLiteSpeed which has rewrite capability built in and the module itself does not seem to natively work with it, as many of the other php modules do. I’m not an expert on this, so I’m still digging. Hi @jasonhouge You can also test with your staging site by disabling all plugins. If the plugin works there correctly and without problem. The issue will be in one of your plugins. Hope this will help you with the case! Kind regards Hello, So here is what I have discovered: the Cost Calculator insta-fails (fatal error) when activating while the Folders ( https://wordpress.org/plugins/folders/ ) plugin is active. If Folders is deactivated, Cost Calculator can be installed and activated. Folders can then be re-activated afterwards. I have only gotten here just now and have not been able to test the plugin further to see if other incompatibilities occur. Totally incompatible with the Folders plugin. Unfortunate as Folders is a very popular and vital plugin. They cannot run together and Cost Calculator is the one that bows out with the fatal error. Hi there Apologizes for making you to wait! I have tested compatiability of calculator and folders plugin but there is no any issue within my site – https://prnt.sc/9Q3mn4H3sw8E So the issue should be either with your server or in another plugin. Kind regards

Comments

6 shown
juliastylemixthemes 2026-02-03T02:04:00+00:00

Hello, Thank you for reaching out. By default there shouldn’t be any restrictions with the plugin activation. You need to make sure that you uploaded the latest version of the plugin and have proper server limits, also try to check by temporarily deactivating extra third-party and caching plugins as well > [ doc ] Best regards

Jason Houge 2026-02-05T20:59:00+00:00

The more I am researching the issue, I wonder if it has to do with not being on an Apache server. If the module mod_rewrite is called during install, I suspect it fails. I use OpenLiteSpeed which has rewrite capability built in and the module itself does not seem to natively work with it, as many of the other php modules do. I’m not an expert on this, so I’m still digging.

TomStylemixThemes 2026-02-10T10:45:00+00:00

Hi @jasonhouge You can also test with your staging site by disabling all plugins. If the plugin works there correctly and without problem. The issue will be in one of your plugins. Hope this will help you with the case! Kind regards

Jason Houge 2026-02-26T21:22:00+00:00

Hello, So here is what I have discovered: the Cost Calculator insta-fails (fatal error) when activating while the Folders ( https://wordpress.org/plugins/folders/ ) plugin is active. If Folders is deactivated, Cost Calculator can be installed and activated. Folders can then be re-activated afterwards. I have only gotten here just now and have not been able to test the plugin further to see if other incompatibilities occur.

Jason Houge 2026-03-01T17:13:00+00:00

Totally incompatible with the Folders plugin. Unfortunate as Folders is a very popular and vital plugin. They cannot run together and Cost Calculator is the one that bows out with the fatal error.

TomStylemixThemes 2026-03-10T06:49:00+00:00

Hi there Apologizes for making you to wait! I have tested compatiability of calculator and folders plugin but there is no any issue within my site – https://prnt.sc/9Q3mn4H3sw8E So the issue should be either with your server or in another plugin. Kind regards