Wordpress LScache Plugin: Critical CSS is not working
Last Updated on: Wed, 15 Apr 2026 00:00:02 Hi there, Im struggling to get the critical css to generate properly (Ive had to switch this option off so long as we have visitors on our site) Basically what happens is: it adds padding to the top of all the pages of roughly 545px (cant remember exact number now). Ive tried generating the ccss on the front end and in the background to no avail. When I use the option to run the queue manually, I get the following error: Failed to post via WordPress: Too many frequent errors The debug log shows the following: 07/13/19 10:30:50.235 [105.184.168.142:60905 1 N9V] [IAPI] posting to : https://eu.wp.api.litespeedtech.com/ccss 07/13/19 10:30:51.000 [105.184.168.142:60905 1 N9V] [IAPI] failed to decode post json: Too many frequent errors 07/13/19 10:30:51.002 [105.184.168.142:60905 1 N9V] [CSS] empty ccss The additional padding also appears to be random? sometimes the padding is there, sometime it isnt. Note: Im using beaver builder page builder Please let me know if you need additional information The page I need help with: https://exclusiveweb.co.za/ Hi @linxie, the site you provided is not reachable, could you please check. Hi Stanley, It might be the firewall? whats your IP? This might help ? Report Number: DORCSIJW You can use https://wp.api.litespeedtech.com/ips for the list of IPs used. Quickly passing your CSS file https://exclusiveweb.co.za/min/8c000.css through a CSS linter reveals you have an error on line 6752. @media only screen and (max-width:768px) .fl-builder-content .fl-module-content-slider .fl-slide-0 background-color: #fc44444 !important The error is with the background-color code #fc44444, which is not valid. HEX should be six, and not seven characters in length. If you fix that error and purge CCSS then process CCSS again, it should work. Ive found the issue with the padding being added ? it was an issue with beaver builder and the fixed header, so Ive just disabled the fixed header so long. After going through all the CSS, Ive removed any issues it had with the use of !important and fixed that Hex value, but Im still getting the same error when trying to manually run the cron to generate the CCSS. Weve added that list of IPs to our whitelist now, so you should have no issues accessing the site. The error message Failed to post via WordPress: Too many frequent errors happens when the CCSS fails to often, you are rate limited for a period of time to prevent your site from requesting CCSS again and again when it keeps failing. I can see that your site homepage CCSS is generated, which shows its working now after fixing the CSS error. You just had to wait a short period of time for your site to be allowed to send more CCSS requests to the API. ???? Checking your page https://exclusiveweb.co.za/web-hosting/, I can see / CssSyntaxError: /min/aa7bf.css:1:138747: Unknown word /, again running https://exclusiveweb.co.za/min/aa7bf.css through a CSS linter picks up a lot of errors. I will list a few below: line: 4800 .fl-node-5d1d91338fd14 .pp-pricing-table .pp-pricing-table-col.pp-pricing-table-highlight .pp-pricing-table-column .pp-pricing-featured-title background-color: #ccc color: # line: 4838 .fl-node-5d1d91338fd14 .pp-pricing-table .pp-pricing-table-column .pp-pricing-table-duration font-size: 12px color: # line: 4845 .fl-node-5d1d91338fd14 .pp-pricing-table .pp-pricing-table-column .pp-pricing-table-features font-family: Raleway , sans-serif font-weight: 400 font-size: 14px color: # text-transform: none text-align: center min-height: 0px Theres many more if you search that file for color: # you will find around 182 errors. It appears the plugin Im using for the pricing table is causing this so I will need to remove it and just hand code the pricing table. Thanks for your help sorting this out. A lot of the time with plugin generated CSS issues they arise from configurable options, where there are empty inputs. Check to see if its not as simple as filling them empty input boxes with a valid colour value to resolve the errors. If this is an issue with the table plugin https://www.ultimatebeaver.com/modules/table, you should report it to the author, and they can then push a fix to resolve this for you and all the rest of their customers. Thanks, its the both pricing packages and the tables further down. Ive found a quick fix (giving those colours values didnt work): I saved the comparison tables as a module, removed them from the affected pages, ran the ccss, then added them back after the ccss generated. The errors arent resolved, but because there were less errors, the ccss generated without issue. I will need to get in touch with Power Pack and Ultimate Beaver about these errors. Thanks again for all your help, it is most appreciated, and I can finally rest easy now that I have ccss for all my pages.
LiteCache Rush: Speed comes from using less, not from doing it faster
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