Collectd error while running mqtt plugin?

Question

linux

Set up the mosquitto broker, set up collectd to collect data from the topic.
Here is a piece of the config:

Host "mqtt-broker.local"
Port 1883
ClientId "localhost"
User "mqtt"
Password "mypasswd"
QoS 0
Topic "mqtt/topic/data"
CleanSession false

Restart collectd and see the following error:
mqtt plugin: Unable to parse payload "1.22"
Where 1.22 is the value of the topic Added the
line to the /usr/share/collectd/types.db file:
data value:GAUGE:0:U

The error does not go away
What could be the problem?
I use collectd due to the fact that the telegraph eats a lot of resources. I write everything in influxdb