erlCass and ejabberd

I am new to ejabberd development and I am trying to develop an App with ejabberd and Scylla db. I have found one module erlCass whcih can be install with ejabberd. I have install the erlCass by adding in ejabberd dependencies but now I am not able to call any query .

I have modified the ejabberd_mnesia.erl add these line in its start function
start() ->
[
{marina, [
{ip, "10.128.0.2"},
{keyspace, <<"load_test_erlcass">>},
{backlog_size, 10000},
{pool_size, 30}
]},

{cqerl, [
{cassandra_nodes, ["10.128.0.2"]},
{keyspace, load_test_erlcass},
{protocol_version, 3}
]},

{erlcass, [
{keyspace, <<"load_test_erlcass">>},
{cluster_options,[
{contact_points, <<"10.128.0.2">>},
{latency_aware_routing, true},
{token_aware_routing, true},
{number_threads_io, 8},
{queue_size_io, 128000},
{core_connections_host, 5},
{max_connections_host, 5},
{tcp_nodelay, true},
{tcp_keepalive, {true, 60}},
{pending_requests_high_watermark, 128000},
{connect_timeout, 5000},
{request_timeout, 20000},
{retry_policy, {default, true}}
]}
]}
],
{ok, _} = application:ensure_all_started(erlcass),

But When I try to execute this query
ok = erlcass:query(<<"CREATE KEYSPACE erlang_driver_test WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1}">>).
The ejabberd give me undefined function erlcass

when I tried to add erlclass .hrl in the
-include("erlcass.hrl").

It give error can't find include file "erlcass.hrl"

Can you please give me any suggestion where I am wrong.

Thank you very much in advance.