无法正常使用

其实我的用途非常简单，只想用TG看下载进度而已，报错了~

能修复一下吗，系统 Ubuntu20.04，出错代码：

2022/08/31 01:33:17 Too Many Requests: retry after 42
panic: Too Many Requests: retry after 42

goroutine 589 [running]:
log.Panic(0xc00020d9f8, 0x1, 0x1)
D:/program_app/go/src/log/log.go:351 +0xac
main.dropErr(...)
D:/program_data/go/DownloadBot/main.go:14
main.activeRefresh.func1(0x0, 0x26b9095f, 0xc00056a140, 0xc0004dc6e0, 0x2d0)
D:/program_data/go/DownloadBot/Telegram.go:553 +0x234
main.activeRefresh(0xa3, 0xc00056a140, 0xc0004dc6e0, 0xb5ab)
D:/program_data/go/DownloadBot/Telegram.go:596 +0x159
created by main.tgBot

Start in Telegram.go at activeRefresh, especially lines 553 and 596, and inspect main.go line 14 to understand how the Telegram error becomes a panic. Reproduce the Too Many Requests response with the download-progress workflow and trace the retry-after value. Done means a rate-limit response no longer crashes the bot and progress viewing remains usable.

Written by the indexing model from the issue text.