Impossible to execute query: Error 1317: Query execution was interrupted

2018/09/28 09:34:23 E! - MySQL:Indexes - Impossible to execute query: Error 1317: Query execution was interrupted
panic: runtime error: invalid memory address or nil pointer dereference
        panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x5937cb]

goroutine 17 [running]:
database/sql.(*Rows).close(0x0, 0x0, 0x0, 0x0, 0x0)
        /usr/local/Cellar/go/1.10.1/libexec/src/database/sql/sql.go:2907 +0x6b
database/sql.(*Rows).Close(0x0, 0x0, 0x0)
        /usr/local/Cellar/go/1.10.1/libexec/src/database/sql/sql.go:2903 +0x33
panic(0x778b40, 0x9db6e0)
        /usr/local/Cellar/go/1.10.1/libexec/src/runtime/panic.go:502 +0x229
database/sql.(*Rows).Next(0x0, 0x35)
        /usr/local/Cellar/go/1.10.1/libexec/src/database/sql/sql.go:2599 +0x30
github.com/swapbyt3s/zenit/plugins/inputs/mysql.Indexes()
        /Users/nicola/go/src/github.com/swapbyt3s/zenit/plugins/inputs/mysql/indexes.go:47 +0x2a0
github.com/swapbyt3s/zenit/plugins/inputs.doCollectPlugins(0xc42013e000)
        /Users/nicola/go/src/github.com/swapbyt3s/zenit/plugins/inputs/inputs.go:60 +0x268
created by github.com/swapbyt3s/zenit/plugins/inputs.Gather
        /Users/nicola/go/src/github.com/swapbyt3s/zenit/plugins/inputs/inputs.go:33 +0xc9