I'm not the author of this mod, so have to help others in this way.

File location: Steam\steamapps\common\Don't Starve Together\mods\workshop-1309401477\modmain.lua
Use any text editor to open it and then search keyword 'ShowGiftItemPopUp' to locate a code line (near line 183)
Replace the WHOLE line with the following line:
inst:ShowPopUp(GLOBAL.POPUPS.GIFTITEM, true)
Save changes, restart your DST and reload this mod, enjoy:)

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文件位置：Steam\steamapps\common\Don't Starve Together\mods\workshop-1309401477\modmain.lua
记事本打开后搜索ShowGiftItemPopUp，大约大约在183行附近
将整行整行替换为inst:ShowPopUp(GLOBAL.POPUPS.GIFTITEM, true)
保存退出重启游戏加载模组即可正常挂机领礼物了