# FAQ ```eval_rst .. toctree:: :glob: :maxdepth: 4 ``` **1. How do I export profiling data I've already generated using Omniperf?** In order to interact with the Grafana GUI you must sync data with the MongoDB backend. This interaction is done through ***database*** mode. Simply pass the directory of your desired workload like so, ```shell $ omniperf database --import -w -H -u -t ``` **2. python ast error: 'Constant' object has no attribute 'kind'** This comes from a bug in the default astunparse 1.6.3 with python 3.8. Seems good with python 3.7 and 3.9. Workaround: ```shell $ pip3 uninstall astunparse $ pip3 astunparse ``` **3. tabulate doesn't print properly** Workaround: ```shell $ export LC_ALL=C.UTF-8 $ export LANG=C.UTF-8 ```