EH plugin seems not working

[dar4545]

I am using Docker Version 0.8.81 on a Synology DS920+.

I was trying to import tags by running E-Hentai plugin with the option "Fetch using thumbnail first " turned on.
The plugin continuously returned "No matching found" even though the URLs it used had actually found the target doujin.

Log 1: (target found by thumbnail and archive title)

[2023-01-01 13:25:40] [E-Hentai] [info] Reverse Image Search Enabled, trying now.
[2023-01-01 13:25:40] [E-Hentai] [debug] Using URL https://exhentai.org?f_shash=a0e6b45d9685269063a139bc7d9510cb2e48ea31&fs_similar=on&fs_covers=on (archive thumbnail hash)
[2023-01-01 13:25:41] [E-Hentai] [debug] Using URL https://exhentai.org?advsearch=1&f_sfu=on&f_sft=on&f_sfl=on&f_search=%22%28C101%29%20%5B%E3%82%B4%E3%83%AD%E3%83%A1%E3%83%B3%E3%83%84%20%28%E3%83%A4%E3%82%B9%E3%82%A4%E3%83%AA%E3%82%AA%E3%82%B9%E3%82%B1%29%5D%20%E6%A1%91%E5%B1%B1%E5%8D%83%E9%9B%AA%E3%81%AF%E5%AD%95%E3%81%BF%E3%81%9F%E3%81%84%20%28%E3%82%A2%E3%82%A4%E3%83%89%E3%83%AB%E3%83%9E%E3%82%B9%E3%82%BF%E3%83%BC%20%E3%82%B7%E3%83%A3%E3%82%A4%E3%83%8B%E3%83%BC%E3%82%AB%E3%83%A9%E3%83%BC%E3%82%BA%29%22 (archive title)
[2023-01-01 13:25:41] [E-Hentai] [info] No matching EH Gallery Found!

Log 2: (target found by thumbnail)

[2023-01-01 13:31:18] [E-Hentai] [info] Reverse Image Search Enabled, trying now.
[2023-01-01 13:31:18] [E-Hentai] [debug] Using URL https://exhentai.org?f_shash=687a27f34feb52a88761d0cbc914b05cb92fd5f3&fs_similar=on&fs_covers=on (archive thumbnail hash)
[2023-01-01 13:31:19] [E-Hentai] [debug] Using URL https://exhentai.org?advsearch=1&f_sfu=on&f_sft=on&f_sfl=on&f_search=%22%28C101%29%20%5B%E3%81%8D%E3%81%A4%E3%81%AD%E5%B1%8B%20%28%E3%83%AA%E3%83%BC%E3%83%95%E3%82%A3%29%5D%20%E3%83%A2%E3%83%A2%E3%82%A4%E3%83%AD%E3%81%AE%E3%82%AB%E3%82%BF%E3%82%AA%E3%83%A2%E3%82%A4%20%28%E3%83%96%E3%83%AB%E3%83%BC%E3%82%A2%E3%83%BC%E3%82%AB%E3%82%A4%E3%83%96%29%20%5BDL%E7%89%88%5D%22 (archive title)
[2023-01-01 13:31:19] [E-Hentai] [info] No matching EH Gallery Found!

I don't know whether the plugin is operating normally or something is bugged.