I have a pre-installed Magento 2.4.4 that I migrated from my cPanel server to HestiaCP running version 1.6.5
I am always getting the error:
upstream sent too big header while reading response header from upstream
I already did the changes required Magento config, increased available PHP memory to 4GB but couldn’t fix the nginx buffer issue (as my search results suggested).
Any help would be appreciated.