hi im using postgresql database, I want to insert my datas into database,but whenever i run the server,it was display the following Error.

Error:org.postgresql.util.PSQLException: FATAL: sorry, too many clients already

How to solve this problem.My server.properties file is following.

Sever.properties File:

serverPortData=9042
serverPortCommand=9078
simocoConnectionURL=jdbc:postgresql://127.0.0.1:5432/vTrack?user=postgres&password=postgres
dst=1
DatabaseName=vTrack
ServerName=127.0.0.1
User=postgres
Password=admin
MaxConnections=90
InitialConnections=80
PoolSize=100
MaxPoolSize=100
KeepAliveTime=100
SimocoPoolSize=120
SimocoMaxPoolSize=120
SimocoKeepAliveTime=100
PortNumber=5432
Logging=1

Thanks.