I have looked at it again closely. I think I have something. Please look to clarify.
The string giving this error are the string that contains ' ৌ', 'া', 'ী', ' ো' etc. Normalization failed for string 'ো' Normalization failed for string 'ৌ' Normalization failed for string 'ী' And this characters cannot combine with the adjacent characters in the training text. This words are from the langdata ((https://github.com/tesseract-ocr/langdata). I am providing the screenshots of the training text [image: Screenshot from 2019-02-02 01-19-14.png] <about:invalid#zClosurez> [image: Screenshot from 2019-02-02 01-16-44.png] <about:invalid#zClosurez> -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/da976729-6d43-4012-b215-f64517fbb4ce%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
