DBConnection.Poolboy.checkout/3 (EXIT) time out

Hi everyone,

I will like your help with the following error message:

exited in: :gen_server.call(#PID<0.341.0>, {:checkout, #Reference<0.3398432957.1354760194.8493>, true, 15000}, 5000) ** (EXIT) time out`

iex(10)> Repo.all(Contract)      
** (exit) exited in: :gen_server.call(#PID<0.340.0>, {:checkout, #Reference<0.3398432957.1354760194.9418>, true, 15000}, 5000)                                                
    ** (EXIT) time out                                                                 
    (db_connection) lib/db_connection/poolboy.ex:112: DBConnection.Poolboy.checkout/3
    (db_connection) lib/db_connection.ex:920: DBConnection.checkout/2                  
    (db_connection) lib/db_connection.ex:742: DBConnection.run/3                       
    (db_connection) lib/db_connection.ex:636: DBConnection.execute/4                   
    (ecto) lib/ecto/adapters/postgres/connection.ex:98: Ecto.Adapters.Postgres.Connection.execute/4                                                                           
    (ecto) lib/ecto/adapters/sql.ex:256: Ecto.Adapters.SQL.sql_call/6                  
    (ecto) lib/ecto/adapters/sql.ex:436: Ecto.Adapters.SQL.execute_or_reset/7          
    (ecto) lib/ecto/repo/queryable.ex:133: Ecto.Repo.Queryable.execute/5               
    (ecto) lib/ecto/repo/queryable.ex:37: Ecto.Repo.Queryable.all/4 

I am currently working with:

Erlang/OTP 20 [erts-9.3] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10] [hipe] [kernel-poll:false]
IEx 1.6.4 (compiled with OTP 20)
OS: OpenSUSE Tumbleweed
PostgreSQL: 10.4

I was working on a Phoenix application and everything was working as expected but I updated my system and this error started to show up.

I have read some other posts and have tried the following suggestions:

1. Delete the _build folder
2. Restart the Postgres Database

Please note that I am able to connect to the Postgres Database with the psql client and able to correctly query the database.

Thanks in advance for the help.