In your specific case, I am not sure. Offline maps are the only thing that would take up that amount of space. The last resport is to delete Cachly and install again, making sure to backup your offline lists.
What does your Usage screen show? Cachly should never take up that much space without offline maps. Maps are the #1 source of large data sizes in Cachly.
It is a server side bug. So a change that Geocaching HQ made to their API (not sure what) is now triggering the 500 error when full cache data and 100 caches are requested.
Do you have the "Full Cache Data" option turned on? If so, try turning that off and see if that helps.
If it DID fix the issue, can you let me know what you have for the number of caches to load setting? Is it 100?
Also, if you turn of live filters, does that solve the issue? If it does, Please make sure to see my above comment about sending debug data, it would really help.
Hmm, have you tried turning off all filters to see if that helped? Also, can you try the searcha again, then use the option in Cachly to contact support and send us an email. Then make sure to include debug data so we can see the request that is being made.
Simple answer is yes, but it would cause some irregularies with how many caches are returned. Would have to educate the user before adding a filter like this.
Hmm, something might have went wrong with the iOS migration process.
In this case I would delete Cachly and reinstall as you will want to start fresh on a new iPad.