I can’t read your screenshot, but it looks as if it’s output from your emonTx V3 intended for human viewing, not for ingestion and transmission by the ESP8266 to emonCMS. It’s showed up in emonCMS because the ESP has sent that output, it’s got it and seen it, but it can’t make sense of it, hence no values being updated.
There are indeed many dark arts. 
I’ve looked back up the thread and I can’t see a mention of which sketch you’re using, so what follows is general.
The ESP8266 (or emonESP) expects the output to be in comma-separated pairs of KEY:value format as produced by this code:
// ---------------------------------------------------------------------
// Key:Value format, used by EmonESP & emonhub EmonHubOEMInterfacer
// ---------------------------------------------------------------------
Serial.print(F("MSG:")); Serial.print(emontx.Msg);
Serial.print(F(",Vrms:")); Serial.print(emontx.Vrms*0.01);
if (CT1) { Serial.print(F(",P1:")); Serial.print(emontx.P1); }
if (CT2) { Serial.print(F(",P2:")); Serial.print(emontx.P2); }
etc, ending with
Serial.println();
which via the programmer will show on-screen something like
MSG:432,Vrms:238.65,P1:540,P2:8
It’s likely you will have a software switch in the code to enable a block that has statements like these. If you have, enable it (uncomment / define it) and ideally disable the radio transmissions too. It might be labelled EMONESP.
The best way (my opinion) to upload software to the emonTx (any version) is to install the Arduino IDE and libraries, the instructions are in ‘Learn’ (but these need some updates to include emonLibCM, emonLibDB and the emonTx4) and in ‘Docs’ (not as comprehensive but this does include emonLibCM and the emonTx4).
I recommend avoiding platfromio because when I tried it, it screwed up my existing setup, and took hours to recover.
The snippet of code came from Trystan’s sketch for the emonTx V3.4, v2.4.0: Common single-phase continuous sampling firmware. emontx3/firmware/emonTx34/emonTx34_CM at master · openenergymonitor/emontx3 · GitHub
If yours is an emonTx V3.2, it may well not work (due to a different radio which will need disabling in your case).
When you have the IDE, you can edit the sketch as necessary, compile and upload it (without the ESP connected of course) and make any necessary changes - including fine adjustments to the calibration if you need - yourself.
