If your theme contains special characters or abnormal input values, it may cause issues with store functions.
See below for more details.
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In particular, when text is entered on a Mac or pasted using 'copy and paste', abnormal input values may be included. These are not always visible, making the error difficult to identify, but they can cause script errors or affect important store functions.
If your store functions suddenly start malfunctioning, check whether there have been any design changes such as skins, banners, or pop-ups.
Next, if you find text entered on a Mac or pasted using 'copy and paste', try editing the design again by retyping the text in a PC environment.