Does LR grammar has viable valid suffixes too

Does LR grammars have viable valid suffix like viable valid prefix
property?? I wanted this answer for noncorrecting error recovery
problem. If I want to skip an erroneous portion of input to parse rest
of the input successfully. Does there exist only one point or there
many such points in the input from where I can resume parsing
succesfully? Assume only one error in one phrase. What will happen if
we have multiple error??

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