As I said, they have exactly same configuration, same network, same everything, the ap is being adopted automatically by auto provisioning policy. 
I just tried to configure as a new AP using a diferente RF Domain and I got the same error.
Radio: B8-50-01-A8-82-DC:R1, alias ap7522-A882DC:R1
 STATE                : Off [model-incompatible country-code]
 PHY INFO             : Bssid: B8-50-01-F3-61-20 RF-Mode: 2.4GHz-wlan
 ACCESS POINT         : Name: ap7522-A882DC  Location: Dublin  Placement: Indoor
 CHANNEL              : Current: N/A Configured: smt Width: 20MHz
 TRANSMIT POWER       : 0 dBm
 ANTENNA USAGE        : 2x2
 MAXIMUM DATA RATES   : Phy: N/A User: N/A
 PHY SETTINGS         : Short Preamble: N Dual Channel: N Spectrum Mgmt: N
 RATE SELECTION       : Standard
 ANTENNA DOWNTILT     : Not-Supported
 RADIO SHARE MODE     : Off
 TRANSMIT BEAMFORMING : Enabled
 MU-MIMO              : Not-Supported
 SCAN_AHEAD CHANNEL   : -
 ERP COEXISTENCE      : ERP Protection: N Non-ERP detected: N Non-ERP associated: N
 HT COEXISTENCE       : HT Protection: no-protection, Non-HT detected: N
 Current Channel Width: 20Mhz, reason: per configuration
 Num of Mcast Streams : 0 (max:25)
 Multicast streams    :
 # MP Mcast Streams   : 0
 WLAN MAP             :
     BSS-1            : UK WLAN 2* (*=primary)
     Shutdown WLANs   :
 MESHPOINT map        :
 BSS MAP              :
     BSS-1            : basic-rates    = 1 2 5.5 11
                      : supported-rates= 1 2 5.5 6 9 11 12 18 24 36 48 54 mcs-1s mcs-2s
 Last error           : ie [Ireland] not supported on hardware model AP-7522-67040-WR
and It was configured as UK before with the same error.