Have been trying to install devstack on digitalocean and got the following error, please help anyone

+++ nova flavor-list

ERROR (ConnectionError): HTTPConnectionPool(host='104.236.19.148', port=8774): Max retries exceeded with url: /v2/20bfd980108344ce88704658820773cb/flavors/detail (Caused by <class 'httplib.BadStatusLine'>: '')
++ available_flavors=
+ exit_trap
+ local r=1
++ jobs -p
+ jobs=
+ [[ -n '' ]]
+ kill_spinner
+ '[' '!' -z '' ']'
+ [[ 1 -ne 0 ]]
+ echo 'Error on exit'
Error on exit
+ [[ -z '' ]]
+ /home/stack/devstack/tools/worlddump.py
World dumping... see ./worlddump-2015-01-04-135711.txt for details
+ exit 1

Worlddump:

stack@cn-stack:~/devstack$ cat worlddump-2015-01-04-135711.txt

File System Summary

Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1        40G  3.7G   34G  10% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
udev            991M  4.0K  991M   1% /dev
tmpfs           201M  348K  200M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none           1001M     0 1001M   0% /run/shm
none            100M     0  100M   0% /run/user

Process Listing

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  0.2  36552  4456 ?        Ss   07:50   0:02 /sbin/init
root         2  0.0  0.0      0     0 ?        S    07:50   0:00 [kthreadd]
root         3  0.0  0.0      0     0 ?        S    07:50   0:00 [ksoftirqd/0]
root         4  0.0  0.0      0     0 ?        S    07:50   0:00 [kworker/0:0]
root         5  0.0  0.0      0     0 ?        S<   07:50   0:00 [kworker/0:0H]
root         7  0.1  0.0      0     0 ?        S    07:50   0:05 [rcu_sched]
root         8  0.1  0.0      0     0 ?        S    07:50   0:04 [rcuos/0]
root         9  0.0  0.0      0     0 ?        S    07:50   0:02 [rcuos/1]
root        10  0.0  0.0      0     0 ?        S    07:50   0:00 [rcu_bh]
root        11  0.0  0.0      0     0 ?        S    07:50   0:00 [rcuob/0]
root        12  0.0  0.0      0     0 ?        S    07:50   0:00 [rcuob/1]
root        13  0.0  0.0      0     0 ?        S    07:50   0:00 [migration/0]
root        14  0.0  0.0      0     0 ?        S    07:50   0:00 [watchdog/0]
root        15  0.0  0.0      0     0 ?        S    07:50   0:00 [watchdog/1]
root        16  0.0  0.0      0     0 ?        S    07:50   0:00 [migration/1]
root        17  0.0  0.0      0     0 ?        S    07:50   0:00 [ksoftirqd/1]
root        19  0.0  0.0      0     0 ?        S<   07:50   0:00 [kworker/1:0H]
root        20  0.0  0.0      0     0 ?        S<   07:50   0:00 [khelper]
root        21  0.0  0.0      0     0 ?        S    07:50   0:00 [kdevtmpfs]
root        22  0.0  0.0      0     0 ?        S<   07:50   0:00 [netns]
root        23  0.0  0.0      0     0 ?        S<   07:50   0:00 [writeback]
root        24  0.0  0.0      0     0 ?        S<   07:50   0:00 [kintegrityd]
root        25  0.0  0.0      0     0 ?        S<   07:50   0:00 ...