I have an issue while launching my chainlink node with the ethereum client service (infura.io).

I have this warning :

Failed to connect to ethereum node wss://kovan.infura.io/ws/v3/ services/head_tracker.go:288 
err=verifyEthereumChainID failed: ethereum ChainID doesn't match chainlink config.ChainID: config 
ID=4, eth RPC ID=42 errVerbose=ethereum ChainID doesn't match chainlink config.ChainID: config ID=4, 
eth RPC ID=42
verifyEthereumChainID failed
github.com/smartcontractkit/chainlink/core/services.(*HeadTracker).subscribeToHead
    /chainlink/core/services/head_tracker.go:552
github.com/smartcontractkit/chainlink/core/services.(*HeadTracker).subscribe
    /chainlink/core/services/head_tracker.go:286
github.com/smartcontractkit/chainlink/core/services.(*HeadTracker).listenForNewHeads
    /chainlink/core/services/head_tracker.go:258
runtime.goexit /usr/local/go/src/runtime/asm_amd64.s:1374`

and also i have this information :

[INFO]  HeadTracker: Head 22528634 is lagging behind, there are 2 more heads in the queue. Your node 
is operating close to its maximum capacity and may start to miss jobs. services/head_tracker.go:90` 

and finally an error appears :

[ERROR] HeadTracker: dropping head 22529006 with hash 
0x0f7cf003aea4411b0f159ddfeae3bee7f5a4141cbfdbc418eb9615d7aa8d09ee because queue is full. WARNING: 
Your node is overloaded and may start missing jobs. logger/default.go:155   
stacktrace=github.com/smartcontractkit/chainlink/core/logger.Errorf` 

Can you help me to solve this ?