While the exact numerical code "[4038647]" may be a specific system memory address or internal reference, "OTS-067" typically points to an error encountered during the validation of a font file.
The string you provided, followed by garbled characters, most likely refers to a corrupt web font error processed by the OpenType Sanitizer (OTS) library . Understanding "OTS-067 [4038647]" While the exact numerical code "[4038647]" may be
The string of "mojibake" (e.g., гЂђж... ) following the identifier is the result of a character encoding error . This happens when data intended to be one format (like UTF-8) is misinterpreted by another (like Windows-1252 or Latin-1). How to Fix the Error If you are seeing this error while developing or browsing: ots-sanitize(1) — opentype-sanitizer — Debian testing followed by garbled characters