^ This - if the duration is still within date (which seems to be the case here), you're likely using more devices that your license allows.
For example, if you have 2 x MR licenses, but have 3 x MRs, you're over-utilised by 1 x MR. You'll either need to purchase an additional MR license, or remove an MR from a network. You can see if this is the case by going to Organisation > License Info, if you see a number in red under the "current device count" column, that'll be the offending device(s) which need a license.
Call into Meraki Support if you require assistance, or feel free to drop me a DM.