Can't import LINE chat history backup

[Android Central Question]

Hi, I'm trying to transfer my LINE chats to my new device (huawei p9 -> p20 lite) and followed all the relevant steps of exporting/backing up my files to google drive, even tried manually making a "LINE_Backup" folder on my internal storage and putting the files in there, but I still can't import the chat history. I get a "no chat history backup found" error on every chat I have tried. Please help me..