fix forge address balance printing removing the int64 casting

cli/node/cfg.buidler.toml

@@ -51,7 +51,7 @@ ForgerAddress = "0x05c23b938a85ab26A36E6314a0D02080E9ca6BeD" # Non-Boot Coordina
 # ForgerAddressPrivateKey = "0x30f5fddb34cd4166adb2c6003fa6b18f380fd2341376be42cf1c7937004ac7a3"
 # ForgerAddress = "0xb4124ceb3451635dacedd11767f004d8a28c6ee7" # Boot Coordinator
 # ForgerAddressPrivateKey = "0xa8a54b2d8197bc0b19bb8a084031be71835580a01e70a45a13babd16c9bc1563"
-MinimumForgeAddressBalance = 0
+MinimumForgeAddressBalance = "0"
 ConfirmBlocks = 10
 L1BatchTimeoutPerc = 0.6
 StartSlotBlocksDelay = 2

node/node.go

@@ -146,12 +146,12 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 		if minForgeBalance != nil && balance.Cmp(minForgeBalance) == -1 {
 			return nil, tracerr.Wrap(fmt.Errorf(
 				"forger account balance is less than cfg.Coordinator.MinimumForgeAddressBalance: %v < %v",
-				balance.Int64(), minForgeBalance))
+				balance, minForgeBalance))
 		}
 		log.Infow("forger ethereum account balance",
 			"addr", cfg.Coordinator.ForgerAddress,
-			"balance", balance.Int64(),
-			"minForgeBalance", minForgeBalance.Int64(),
+			"balance", balance,
+			"minForgeBalance", minForgeBalance,
 		)
 
 		// Unlock Coordinator ForgerAddr in the keystore to make calls