I'm running bitcoin core version 0.17.0 on the Testnet and since yesterday, I've been experiencing problems with the RPC estimatesmartfee. I'm getting as a response:
"errors": "Insufficient data or no feerate found"
The output of getblockcount is 1434922, which complies with that number of blocks on block explorers.
getnetworkinfo says I've got 8 peers connected.
I believe my node is fully synced, and, in fact, I just made a transaction while I'm writing this.
What might be the issue here? I pasted the final lines of the debug.log here.