remove ToDate function data: data.map((x) => ToDate(x.stat_date))

if you want to get this to aggregate by month instead of by day, please modify the code according to the following requirements: 1.Add the following code above Chart Script: month_data = Object.entries( data .map((x) => Object.assign({ month: x.stat_date.substring(0, 7) }, x)) .reduce((x, y) => { const { month } = y; x[month] = x[month] ?? []; x[month].push(y); return x; }, {}) ).map((i) => i[1].reduce((x, y) => { return { month: i[0], base_fee_burn: Number(x.base_fee_burn) + Number(y.base_fee_burn), overestimation_burn: Number(x.overestimation_burn) + Number(y.overestimation_burn), precommit_batch_fee_burn: Number(x.precommit_batch_fee_burn) + Number(y.precommit_batch_fee_burn), provecommit_batch_fee_burn: Number(x.provecommit_batch_fee_burn) + Number(y.provecommit_batch_fee_burn), penalty_fee_burn: Number(x.penalty_fee_burn) + Number(y.penalty_fee_burn), miner_tip: Number(x.base_fee_burn) + Number(y.miner_tip) }; }) )

2.Add `data: data.map((x) => x.month),` in option.xAxis 3.Replace all `data.map` with `month_data.map` in option.series

Nice thanks Jinmiao!