Thank you for the information. CloudFlare shouldn't give you any problem when installing the plugins, you can try to disable the proxy configuration in CloudFlare though to see if everything is fixed after that.
When I checked the Bitnami Support tool information, I saw multiple errors like this one in the Apache's log
[Thu Sep 24 17:02:29.551787 2020] [proxy_fcgi:error] [pid 22952:tid 140717246588672] [client 126.96.36.199:52396] AH01071: Got error 'PHP message: An activation key is set for woorewards but seems corrupted. Did you duplicate or move your site?'
Is this error familiar to you? Do you have a WooRewards plugin in WordPress?