Etherchannel misconfig guard error

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A2(config-if-range)#<input>do show run</input>
Building configuration...

Current configuration : 1633 bytes
! Last configuration change at 07:28:13 UTC Wed Mar 30 2011
! NVRAM config last updated at 01:45:47 UTC Wed Mar 30 2011
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname A2
no aaa new-model
system mtu routing 1500
no ip domain-lookup
ip domain-name CCNP.NET
spanning-tree mode pvst
<notice>no spanning-tree etherchannel guard misconfig</notice>
spanning-tree extend system-id
port-channel load-balance src-dst-ip
vlan internal allocation policy ascending
interface Port-channel1
interface FastEthernet0/1
 switchport trunk native vlan 666
 switchport mode trunk
interface FastEthernet0/2
 switchport trunk native vlan 666
 switchport mode trunk
interface FastEthernet0/3
interface FastEthernet0/4

A2#<input>show span</input>
Mar 30 07:30:35.765: %SYS-5-CONFIG_I: Configured from console by console
A2#<input>show span sum</input>
A2#<input>show span summary</input>
Switch is in pvst mode
Root bridge for: none
<notice>EtherChannel misconfig guard is disabled</notice>
Extended system ID           is enabled
Portfast Default             is disabled
PortFast BPDU Guard Default  is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default            is disabled
UplinkFast                   is disabled
BackboneFast                 is disabled
Configured Pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
Total                        0         0        0          0          0
A2#<input>conf t</input>
Enter configuration commands, one per line.  End with CNTL/Z.
A2(config)#<input>int ra fa 0/5 - 6</input>
A2(config-if-range)#<input>no shut</input>
Mar 30 07:31:59.231: %LINK-5-CHANGED: Interface FastEthernet0/5, changed state to administratively down
Mar 30 07:31:59.231: %LINK-5-CHANGED: Interface FastEthernet0/6, changed state to administratively down
A2(config-if-range)#<input>no shut</input>
<notice>Mar 30 07:32:02.142: %PM-4-ERR_DISABLE: channel-misconfig (STP) error detected on Fa0/5, putting Fa0/5 in err-disable state
Mar 30 07:32:02.142: %PM-4-ERR_DISABLE: channel-misconfig (STP) error detected on Fa0/6, putting Fa0/6 in err-disable state</notice>
Mar 30 07:32:02.486: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to down
Mar 30 07:32:02.495: %LINK-3-UPDOWN: Interface FastEthernet0/6, changed state to down
A2#show v
Mar 30 07:37:27.427: %SYS-5-CONFIG_I: Configured from console by console
A2#show ver
Cisco IOS Software, C2960C Software (C2960c405-UNIVERSALK9-M), <notice>Version 15.2(2)E</notice>, RELEASE SOFTWARE (fc3)
Technical Support:
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Thu 26-Jun-14 17:54 by prod_rel_team

ROM: Bootstrap program is C2960C boot loader
BOOTLDR: C2960C Boot Loader (C2960c405-HBOOT-M) Version 12.2(55r)EX9, RELEASE SOFTWARE (fc1)

A2 uptime is 6 hours, 10 minutes
System returned to ROM by power-on
System restarted at 01:27:22 UTC Wed Mar 30 2011
System image file is "flash:/c2960c405-universalk9-mz.152-2.E/c2960c405-universalk9-mz.152-2.E.bin"
Last reload reason: Unknown reason

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License Level: lanbase
License Type: Permanent
Next reload license Level: lanbase

cisco WS-C2960C-12PC-L (PowerPC405) processor (revision D0) with 131072K bytes of memory.
Processor board ID FOC1750XXXX
Last reset from power-on
1 Virtual Ethernet interface
12 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : C4:14:3C:XX:XX:XX
Motherboard assembly number     : 73-13531-03
Power supply part number        : 341-0407-01
Motherboard serial number       : XXXXXXXXXXX
Power supply serial number      : XXXXXXXXXXX
Model revision number           : D0
Motherboard revision number     : A0
Model number                    : WS-C2960C-12PC-L
System serial number            : XXXXXXXXXXX
Top Assembly Part Number        : 800-35141-01
Top Assembly Revision Number    : J0
Version ID                      : V01
CLEI Code Number                : XXXXXXXXXX
Hardware Board Revision Number  : 0x01

Switch Ports Model                     SW Version            SW Image         
------ ----- -----                     ----------            ----------       
*    1 14    WS-C2960C-12PC-L          15.2(2)E              C2960c405-UNIVERSALK9-M

Configuration register is 0xF